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Features of the use of T8 LED lamps with G13 socket. LED lamps T8, with G13 socket Luminous flux of LED lamp T8

Linear fluorescent fluorescent lamps are more economical (about 5 times) and have a longer service life (5-10 times).

A little history

Edmund Germer is considered the inventor of the fluorescent lamp (fluorescent lamp). He and his team in 1926 obtained white-colored light from a gas-discharge lamp, the bulb of which was coated inside with fluorescent powder. General Electric Corporation later bought the patent from Germer and brought fluorescent lamps to widespread commercial use in 1938. The light of the first lamps resembled natural street light on a cloudy day (approximately 6400K): it is believed that this is when the name “fluorescent lamp” appeared.

In the Soviet Union, mass production of fluorescent lamps began only in 1948, for which in 1951 the developers of the first Soviet fluorescent lamp became laureates of the Stalin Prize of the second degree.

Soviet GOST 6825-64 defined only three standard sizes of linear fluorescent lamps with a power of 20, 40 and 80 watts (length 600, 1200 and 1500 mm, respectively). The flask had a large diameter of 38 mm for easier ignition at low temperatures.

Fluorescent linear fluorescent lamps are available in many types: different powers, lengths, with different bulb diameters, different bases and different light levels, depending on the purpose of the lamp. Moreover, this range will be even larger if you consider that energy-saving lamps are also fluorescent lamps with built-in starters.

Today, the most common linear fluorescent lamp tubes are T8 (Ø 26 mm), T5 (Ø 16 mm) and T4 (Ø 12.5 mm). T8 tube lamps have a G13 base (13mm between pins), while T4 and T5 have a G5 base (5mm between pins). T8 fluorescent lamps are currently available in wattages from 10 to 70 W, T5 lamps from 6 to 28 W, and T4 lamps from 6 to 24 W. Naturally, the power of the lamps directly affects the size (length) of fluorescent lamps: the ratio of sizes and powers is standardized. That is, an 18 W lamp with a T8 tube and a G13 base from any manufacturer has a length of 590 mm.

Also, fluorescent lamps have a color rendering index (indicated by Ra or CRI - color rendering index), that is, the ability to accurately display colors compared to natural light. So lamps with 100% color rendering (Ra=1) display all colors the same as in sunlight. But the most common (due to sufficiency and greater availability) are lamps with a color rendering index of 70 - 89%.

Below we provide a description and specifications the most commonly used lamps, both in the industrial and municipal (where they are most common) and residential sectors. The lumen output and lifespan values ​​below are approximate and may vary depending on the manufacturer.

Standard linear fluorescent lamps with T8 tube and G13 base


The most common type of linear fluorescent lamps. It is precisely these lamps with a power of 18 W ("short") or 36 W ("long") that are first remembered when they hear the phrase "fluorescent lamp." And although the range of such lamps consists of models with a power of 10 to 70 W, the lamps with a power of 18 and 36 W are most often used, which are interchangeable with Soviet fluorescent lamps LB/LD-20 and LB/LD-40, respectively.

Linear fluorescent lamps with a T8 tube and a G13 base are used mainly in industry (warehouses and production workshops), as well as in offices and municipal government institutions (administrations, schools, kindergartens).

The average operating time is 10,000 hours. The diameter of the T8 tube is 26 mm. They work both with electromagnetic chokes (EMG) in conjunction with starters, and with electronic ballasts (EPG).

power light flow Colorful temperature Ra(CRI) length with base without pins
Osram L 18W/640
Philips TL-D 18W/33-640
(LB-20)
18 W 1200 lm 4000K (cool white) 60-69% 590 mm
Osram L 18W/765
Philips TL-D 18W/54-765
(LD-20)
18 W 1050 lm 6500 K (cold daytime) 70-79% 590 mm
Osram L 36W/640
Philips TL-D 36W/33-640
(LB-40)
36 W 2850 lm 4000K (cool white) 60-69% 1200 mm
Osram L 36W/765
Philips TL-D 36W/54-765
(LD-40)
36 W 2850 lm 6500 K (cold daytime) 70-79% 1200 mm
Osram L 15W/640 15 W 850 lm 4000K (cool white) 60-69% 438 mm
Osram L 15W/765 15 W 740 lm 6500 K (cold daytime) 70-79% 438 mm
Osram L 30W/640 30 W 2100 lm 4000K (cool white) 60-69% 895 mm
Osram L 30W/765 30 W 1900 lm 6500 K (cold daytime) 70-79% 895 mm

Osram L 58W/640
(instead of LB-80)

58 W 4600 lm 4000K (cool white) 60-69% 1500 mm
Osram L 58W/765
(instead of LD-80)
58 W 4000 lm 6500 K (cold daytime) 70-79% 1500 mm
Osram L 70W/640 70 W 5250 lm 4000K (cool white) 60-69% 1764 mm

Standard linear fluorescent lamps with T5 tube and G5 base

T5 fluorescent lamps (as opposed to T8) are most common in the residential sector. They are narrower, and therefore lamps with them are better suited for illuminating niches or kitchen tables under cabinets.

The range of fluorescent linear lamps with T5 tube consists of models with power from 6 to 28 W (replacement of incandescent lamps from 30 to 140 W). Lamps with colors of 4200K and 6400K are mainly produced.

T5 lamps have a G5 base (5 mm between pins).

The average operating time is 6,000 - 10,000 hours (depending on the manufacturer and model). The diameter of the T5 tube is 16 mm. Used with electronic ballasts (EPG).

power light flow Colorful temperature tube length without base total length with pins
Uniel EFL-T5-06/4200/G5 6 W 380 lm 4000 K
(cold white)
211 mm 225 mm
Uniel EFL-T5-06/6400/G5 6 W 350 lm 6400 K
(day)
211 mm 225 mm
Uniel EFL-T5-08/4200/G5 8 W 600 lm 4000 K
(cold white)
288 mm 302 mm
Uniel EFL-T5-08/6400/G5 8 W 580 lm 6400 K
(day)
288 mm 302 mm
Uniel EFL-T5-13/4200/G5 13 W 960 lm 4000K (cool white) 516 mm 530 mm
Uniel EFL-T5-13/6400/G5 13 W 940 lm 6400 K
(day)
516 mm 530 mm
Uniel EFL-T5-21/4200/G5 21 W 1850 lm 4000K (cool white) 849 mm 864 mm
Uniel EFL-T5-21/6400/G5 21 W 1660 lm 6400 K
(day)
849 mm 864 mm
Uniel EFL-T5-28/4200/G5 28 W 2470 lm 4000K (cool white) 1149 mm 1161 mm
Uniel EFL-T5-28/6400/G5 28 W 2350 lm 6400 K
(day)
1149 mm 1161 mm

Standard linear fluorescent lamps with T4 tube and G5 base

Luminaires for fluorescent linear lamps with a T4 tube are less widespread than luminaires for T5 lamps. Basically, such fluorescent lamps are used for local lighting - an ideal furniture lamp!

Linear fluorescent lamps with a T4 tube are produced with a power of 6 to 24 W (replacing incandescent lamps from 30 to 120 W), with a color temperature of 4200K and 6400K.

The average operating time is 6000 - 8000 hours (depending on power and manufacturer). The diameter of the tube is 12 mm. They work with electronic ballasts (EPG).

power light flow Colorful temperature tube length without base total length with pins
Uniel EFL-T4-06/4200/G5 6 W 380 lm 4000 K
(cold white)
206 mm 220 mm
Uniel EFL-T4-06/6400/G5 6 W 350 lm 6400 K
(cold daytime)
206 mm 220 mm
Uniel EFL-T4-08/4200/G5 8 W 600 lm 4000 K
(cold white)
326 mm 340 mm
Uniel EFL-T4-08/6400/G5 8 W 580 lm 6500 K (cold daytime) 326 mm 340 mm
Uniel EFL-T4-12/4200/G5 12 W 940 lm 4000K (cool white) 354 mm 368 mm
Uniel EFL-T4-12/6400/G5 12 W 920 lm 6500 K (cold daytime) 354 mm 368 mm
Uniel EFL-T4-16/4200/G5 16 W 1210 lm 4000K (cool white) 454 mm 467 mm
Uniel EFL-T4-16/6400/G5 16 W 1195 lm 6500 K (cold daytime) 454 mm 467 mm
Uniel EFL-T4-20/4200/G5 20 W 1700 lm 4000K (cool white) 553 mm 567 mm
Uniel EFL-T4-20/6400/G5 20 W 1680 lm 6500 K (cold daytime) 553 mm 567 mm
Uniel EFL-T4-24/4200/G5 24 W 2020 lm 4000K (cool white) 641 mm 655 mm
Uniel EFL-T4-24/6400/G5 24 W 2010 lm 6500 K (cold daytime) 641 mm 655 mm

Special fluorescent lamps for plants and aquariums Osram Fluora, Camelion Bio


Home distinctive feature lamps for plants and aquariums is an emphasis in the red and blue regions of the spectrum. The use of Osram Fluora significantly improves the flow of photobiological processes in plants: in this light they grow better and get sick less in conditions of lack of sunlight and, especially, lack of daylight!

Osram Fluora special linear fluorescent lamps for aquariums and plants are available with a T8 tube (Ø 26 mm), G13 base and power from 15 to 58 W.

power light flow length with base without pins

Osram Fluora L 18W/77

18 W 550 lm 590 mm

Osram Fluora L 36W/77

36 W 1400 lm 1200 mm

Osram Fluora L 15W/77

15 W 400 lm 438 mm
Osram Fluora L 30W/77 30 W 1000 lm 895 mm
Osram Fluora L 58W/77 58 W 2250 lm 1500 mm

Special fluorescent lamps for food lighting Osram Natura

The special phosphor of Osram Natura lamps gives food products the natural appearance of fresh and appetizing products! It is recommended to use the lamps in grocery stores, supermarkets and markets. The correct light is especially important for butcher shops and bakery departments.

Thanks to a specially selected light spectrum (color 76), Osram Natura lamps will give meat, sausages, bakery products, vegetables and fruits a more attractive and appetizing appearance.

power light flow Ra(CRI) length with base without pins
Osram Natura L 18W/76 18 W 750 lm 70-79% 590 mm
Osram Natura L 36W/76 36 W 1800 lm 70-79% 1200 mm
Osram Natura L 15W/76 15 W 500 lm 70-79% 438 mm
Osram Natura L 30W/76 30 W 1300 lm 70-79% 895 mm
Osram Natura L 58W/76 58 W 2850 lm 70-79% 1500 mm

Practical studies have revealed that when using raster lighting devices to create an LED lighting system, users do not need to purchase new lighting equipment.

The technical characteristics of the lamps make it possible to easily install a diode light element in them. The most suitable way to accomplish this task is considered to be a built-in T8 LED lamp for 120 cm and 60 cm. The product consumes energy economically, ensures safety in use and guarantees a long service life.

Technical features of the T8 series lamp

These installations are perfect for arranging offices, industrial premises, commercial buildings, supermarkets and other types of stores. Today, lighting technology with built-in 4/18 W fluorescent elements is no longer as popular as before. In their place came more advanced and small-sized LED lamps T8 600 mm overhead type.


If you already have 4x18 W fluorescent lighting devices, you can significantly reduce the cost of purchasing full-fledged LED lamps and upgrade old ones to T8 tubular diodes with a g13 base. During the manufacturing process of the product, matte or transparent polycarbonate is used to create the housing; a certain number of LED elements are placed inside.

T8 1200 mm LED lamps, the price of which has slight differences, are equipped with diodes in the same way. The devices have the required length, which is suitable for connecting to a 2x36W fluorescent lamp.


To modernize lighting installations, it is not enough to install a LED t8 model of the appropriate length; it is also necessary to reconstruct the electrical wiring in the equipment itself. LEDs have a direct connection system to a 220V power source.

VIDEO: Replacing T8 fluorescent lamps with LED lamps

Types of fluorescent lamps

Today, the domestic market offers a large assortment of LED tube lamps, differing in driver type, power and size.

In terms of dimensions, the product is divided into three types according to length:

  • 600 mm;
  • 900 mm;
  • 1200 mm.

According to design features, lighting equipment has the following classifications:

  • a device with a built-in driver inside a polycarbonate case, below the diodes. The maximum voltage level is 220V.
  • element with installed driver external type. The voltage level varies between 12-24V.

The body of the installation itself has a different coating, which provides a sharp or diffuse glow:

  • Matte flask;
  • Translucent;
  • Opaque glossy;
  • Transparent.

In the production process of the case, materials such as acrylic and polycarbonate can be used. This raw material is characterized by high strength, reliability and long service life.

Dimensional parameters of lighting equipment

LED lamps, regardless of the type of bulb and internal components, have standardized dimensional parameters. In addition, the type of installation of the product is determined by the dimensions.

An analogue of a fluorescent lamp produces a powerful luminous flux and consumes electricity, depending on the dimensions of the lighting equipment. Each manufacturing company has individual standards that differ significantly.

Table with approximate parameters of the LED lamp.

600 mm T8 g13 880-1100 LM 10 W
900 mm T8 g13 1200-1300 LM 13 W
1200 mm T8 g13 1450-1900 LM 15-18 W
1500 mm T8 g13 2030-2365 LM 23-24 W

The color power value may vary depending on the type of lighting equipment:

  1. 2700-3500 K (Kelvin) – a product producing white light with a warm tint;
  2. 3500-4500K – white standard lighting;
  3. Above 4,500K – cold light with a light blue, slightly noticeable tint.

The most popular modification is a device with standard white light. Its power rating is considered the best option, which does not have a strong effect on the eyes.

If you need to create a cozy and comfortable atmosphere in the room, you should give preference to the first option, which has a warm tint.

Connecting a T8 LED lamp

The connection diagram for diode installations in fluorescent lamps is considered quite easy and does not require any experience or labor. However, you should first carefully study the step-by-step installation instructions, since there may be several installation options.


To simplify the reconstruction of fluorescent elements for a T8 LED lamp, manufacturers equip the base of this element with the same dimensions - G13. The installation system is fully consistent with the installation of conventional luminous parts.

To connect, you need to remove the starter from the fluorescent device and reduce the inductor, thereby ensuring a direct voltage flow to the tubular diode.

Lamps of the T8 series have recently become in demand in the technical market. The reason for this is an economical solution to the problem of replacing a luminescent part with an LED. In this case, the base of the light source is not subject to modernization. The LED lamp, according to the manufacturer, can last from 50,000 to 100,000 hours, which is equal to 20 years.

However, as statistics from household use of the device show, the service life reaches given value in very rare cases. This is justified by the purchase of low-quality LED parts. The service life of such devices is 3-4 years of intensive use.


In order not to make a mistake in choosing and buy a good product, you should pay attention to more expensive models from well-known companies. In addition, you need to determine for yourself the most optimal indicators of the following technical characteristics:

  • Luminous power

In case of replacing a fluorescent lamp with a T8 1200 mm LED lamp, the price of which depends on the light power, you must first decide on the color scheme. A product that produces brighter light is more expensive because the device contains diodes with high energy efficiency.

  • Ripple value

The indicator has a direct impact on human health. The coefficient should not be more than 1%, however, state regulations suggest limits that significantly exceed this number - up to 5%. Equipment with the second designation is strictly prohibited from being used in rooms where users spend a lot of time at the computer.

  • Colorful temperature

As mentioned earlier, warm shades of rays create a cozy atmosphere, cold shades progress in a working manner and encourage.

Review of some models and prices

Name Characteristics price, rub.
T8 600 mm

"LED RETAIL"

Material – glass, Base G13, Power – 10 W, brightness 800-1000 Lumens, number of LEDs – 96 pieces 150
1200 mm

"LED RETAIL"

Material – glass, Base G13, Power – 18 W, brightness 1900 Lumens 315
REV Ritter Material – glass, Base – G13, Power – 24 W, brightness – 1800 Lumens, luminous flux – 6500K 780
ECON Power – 9W, minion – G13, luminous flux 6500K 190
Ecola Base – G13, Power 12.5 W, luminous flux 6500K, length – 60.5 mm 220
Crixled Material – glass, Base G13, Power – 10 W, energy saving 945
G13 era Base – G13, energy saving 140

VIDEO: Comparison of T8 120 cm LED lamps with a power of 18 W standard and premium

T8 LED lamp connection diagram

To change the fluorescent lamp in the lamp to a T8 LED, remove the starter (the choke remains in the same place) and install a new lamp. In this case, the sockets of the cartridge remain as is, because they are suitable according to the standard for these lamps.

Important: Before starting work, do not forget to turn off the power supply!

Connection diagram for LED lamps in T8 housing

Connection diagrams for LED lamps in T8 housing

When replacing fluorescent lamps with LED lamps, it is necessary to remove the starters and either short-circuit the transformers. or remove them completely. If electromagnetic ballasts (any modification) or high-frequency electromagnetic ballasts (any modification) were previously installed, they must be removed along with the starters.

The output contacts of the lamps, located on one side, are closed. Therefore, it does not matter which pin the voltage is applied to.

Connection diagram with diode lamps with a rated voltage of 220V:

Replacing fluorescent lamps with T8 G13 LED lamps

Replacing T8 fluorescent lamps with T8 LED lamps (lately we often hear “LED tubes”) is quite simple.

Externally, connecting T8 fluorescent lamps, or as they are also called G13 T8, is no different from connecting T8 LED lamps, or rather not even the connection, but the installation process itself. The fluorescent lamp was removed and the LED lamp was inserted.

The peculiarity of the installation is that to operate, T8 LED tubes do not require ballasts, or, more simply put, it must be directly connected to a 220V power supply like a regular light bulb, while powering fluorescent lamps at the time of startup requires a starter and a choke.

Therefore, in the luminaire itself, in which T8 LED lamps will be installed, the switching circuit of the fluorescent lamp must be changed, i.e., it is necessary to rewire the wires from the electrical network directly to the sockets into which the G13 base is inserted, bypassing the ballast (starter and choke).

It is quite obvious that it is most convenient to perform these works with the lamp removed, on the mounting table. Before starting work where the T8 G13 lamp will be replaced, to comply with safety precautions, turn off the power to the lamp in which the fluorescent lamp will be replaced. To do this, simply turning off the switch is not enough, since it can be accidentally turned on by strangers during replacement work.

Replacing a T8 G13 fluorescent lamp

To install a T8 G13 LED tube in place of a T8 fluorescent lamp, you must perform the following work: disconnect the wires from the starter, disconnect the wires from the throttle, connect the wires from the electrical network to the G13 socket, i.e., apply 220V voltage to the lamp directly, as shown in the figure.

At the same time, it is not necessary to completely dismantle the starter and choke - the lamps last 50 thousand hours for 7-8 years, and in the event of a change of office or premises, the lamps can be restored to work with fluorescent lamps, and T8 LED tubes can be used in a new place.

LED lamp T8 G13. Connection diagram

Additional Information

T8 LED lamps are used in all luminaires that use T8 G13 fluorescent lamps with lengths of 600 mm, 1200 mm, 1500 mm and energy consumption of 18W, 36W, 58W.

A luminaire in which a T8 fluorescent lamp is installed consumes more because there are losses on the ballast. If the luminaire uses electromagnetic ballast, then the actual consumption of the luminaire is approximately 20% greater than the specified consumption for a fluorescent lamp; if the ballast is electronic, then the consumption of the luminaire is approximately 8% greater than the indicated consumption for a fluorescent lamp. Advantages of T8 LED tubes do not require ballasts (starters, ballasts and other ballasts) does not contain mercury, therefore does not require disposal (disposal of fluorescent lamps is quite an expensive procedure) energy consumption of an LED lamp is 2 times less than fluorescent lamps T8 LED lamps do not flicker and do not tire the eyesight a lamp with a T8 LED lamp does not buzz, the service life is about 50,000 hours (versus 5-8 thousand hours for a fluorescent lamp).

LED lamp T8

MAIN CHARACTERISTICS

Are a complete replacement noi in terms of luminous flux of T8 fluorescent lamps in raster with luminaire.

Energy savings of 50% compared to fluorescent lamps.

SPECIAL TECHNICAL ADVANTAGES

The most important factor that ensures the longevity of the lamp is high-quality heat dissipation from the LED chips. In addition to the main radiator, the Maxus LED lamp has an additional fin for heat dissipation. Due to this, heat is removed from the mounting plate through 3 points.

The LED chips are mounted on a double-sided printed circuit board and using a special high-density material, which also contributes to high-quality heat dissipation.

Modular board system

Soldering is not used to connect parts of the lamp circuit board. All parts are connected using special gold-plated connectors. This type of connection ensures the reliability and durability of the lamp.

The driver uses modern microcircuits that make it possible to minimize the size and eliminate the use of a high-voltage electrolytic capacitor. As a result, a PF value of 0.93 is achieved, and there are no current surges when the lighting is turned on. The highly efficient DNC ​​filter completely eliminates interference from the electrical network.

The driver is built according to the circuit of a galvanically isolated pulse-width modulator (PWM), a current stabilizer with feedback, which makes it possible to maintain a stable current on LED chips with high accuracy in a wide range of supply voltage 175-275 V.

The PWM is designed for a maximum load of 35 W, which ensures optimal temperature conditions even when operating under significant load.

WIDE LIGHT DISTRIBUTION CURVE

LED tubes OgonOK T8-600

To effectively replace outdated lamps, an analogue of an 18 W fluorescent lamp. These LED lamps have a standard size and fit any lighting fixture. In addition to low power consumption (6.5 W), the tubes are flicker-free and therefore safe for eyesight. The lamps are made of impact-resistant, safe materials; they cannot be accidentally broken or injured.

When turned on, the temperature of the tubes is only a few degrees higher than the ambient temperature, so it is impossible to get burned by them. If there is a sudden voltage drop, the tubes will continue to work. All of the listed characteristics allow the use of these lamps in a wide variety of conditions, even close to extreme ones.

Advantages:

  • energy savings compared to fluorescent lamps
  • no pulsations harmful to the eyes
  • does not require special disposal
  • doesn't beat
  • Doesn't heat up, doesn't burn
  • does not contain mercury or other harmful substances
  • resistant to temperature and voltage changes.

Specifications:

T8 LED tubes are becoming more affordable every year. For new construction, you can use ready-made luminaires with T8 LED tubes, and for reconstruction, it is possible to upgrade existing fluorescent ones.

In one of the last articles, I considered the economic effect of replacing fluorescent lamps with T8 LED tubes. Let's look at how LED tubes are connected.

To simplify the replacement of T8 type fluorescent lamps with T8 LED tubes, manufacturers made the LED tubes have the same base (G13) as the fluorescent ones, although only 2 contacts are required to turn on the LED tubes, not 4.

Seals, security holograms, documents, everything is in perfect condition. Additional equipment: timers for automatic control counters, 63A circuit breakers in a 25A housing, additional remote controls.

NaPulte.com - counters with remote control.

The connection diagram for T8 LED tubes is very simple and is no different from the connection diagram for a conventional incandescent lamp.

Connection diagram for T8 LED tubes

To turn on the LED tube, it is enough to apply voltage to the lamp without using any additional devices. Unlike a fluorescent lamp, an LED lamp does not require ballasts (ballasts).

If you have fluorescent lamps with T8 lamps, then after a little modernization these lamps can be operated with LED tubes.

The connection diagram for T8 LED tubes instead of fluorescent lamps is presented below:

Connection diagram for T8 LED tubes instead of fluorescent lamps

It is necessary to remove the starter from the existing fluorescent lamp and short-circuit the choke, i.e. It is required to supply voltage directly to the LED lamp.

At any time it is possible to carry out a reverse modernization and use the same fluorescent lamps without resorting to significant financial costs.

Sources:

Where to buy an LED lamp - optogan.by will deliver it for free. . The best Slot machines online for free and without registration.

Cleaning mirrors: If a mirror has become dull, you can renew it. Add 2 tablespoons of vinegar and 20-30 grams of chalk to a glass of hot water. Drain the well-stirred and settled liquid and wipe the mirror with it. After this, the mirror should be wiped with a dry soft cloth.

Remove water stains from furniture: You can remove water stains from a polished surface by sprinkling it with flour and then wiping it with machine oil.

As my practice shows, many people do not know that when using raster lamps there is no need to buy new ones in order to install LED lighting. The simplest and effective method, this is an upgrade with T8 LED lamps for 600 mm and 1200 mm.

Such ceiling lights are common in offices, shops, and office spaces. As a rule, they are mounted in Armstrong suspended ceilings. But in addition to built-in ones, there are also overhead models. They are now outdated and too thick. They were replaced by new diode ones with a thickness of only 1 cm, convenient to install using an overhead type of installation.


  • 1. Types of T8 lamps
  • 2. Benefits of replacing with LED
  • 3. Types according to connection diagram
  • 4. T5 lamps
  • 5. Simple modernization of the lamp
  • 6. Cost of modernization
  • 7. Replacement video
  • 8. Example prices

Types of T8 lamps

T8 lamps, also marked G13, are also called T8 LED tubes. Externally, this is also a tube made of matte or transparent polycarbonate, but the filling consists of LEDs. The dimensions fully correspond to luminescent ones, standard sizes are 600 mm, 900 mm, 1200 mm.

Structurally, they are of two types:

  • the driver is installed inside the tube under the LED diodes, accordingly, it is powered by a voltage of 220V;
  • An external driver is used, like from an LED strip, powered by a voltage of 12V.

Built-in drivers for 220 volt models

According to their design, flasks are divided into 3 types:

  1. transparent, 0% loss;
  2. translucent, satin, loss 10%;
  3. matte, not transparent, light loss on average 20%.

The flask is made of acrylic plastic or polycarbonate, which gives good mechanical strength.

Standard sizes:

  • 300mm. for desktop;
  • 600mm. for Armstrong ceiling lamps;
  • 900mm.;
  • 1200mm.

The luminous flux increases in proportion to the length, the length has increased 2 times, it shines 2 times brighter.

The color temperature has the same characteristics as LED lamps:

  1. warm white light;
  2. neutral white, daytime;
  3. cold, bluish compared to warm.

Of these options, the best one is neutral daylight, the eyes perceive it best, a white sheet of paper will be really white and will not turn yellow as if it were warm.

Benefits of replacing with LED

Let's calculate how profitable it is to install new diodes instead of fluorescent ones. We take into account that they are placed on an Armstrong suspended ceiling and shine in all directions. Due to the limited dimensions of the body itself, the body of the tube obscures its reflected light. The calculation was made by an electrician, he has more extensive experience in this.

Let's carry out a simple calculation for gas-discharge systems, which will involve:

  • Efficiency of all luminescent from 70%
  • shading coefficient of light flux when reflected from a mirror reflector, 0.6-0.7;
  • light source efficiency 50-60 Lm/W;
  • service life no more than 18,000 hours.

For diodes, these values ​​will be respectively:

  • 90% efficiency depends on the power supply;
  • 0.9 because it only shines down;
  • 100-120 Lm/W for medium price category;
  • up to 50,000 hours, after this period the brightness will decrease to 70% of the original.

Using the above coefficients, you can make your own calculations. A diode light source is 2 times more efficient and economical only in terms of electrical parameters. If we take into account the service life, then in the end the superiority of new technologies will be 4 times.

At low temperatures, the efficiency of gas-discharge sources decreases, while that of diode sources increases. This factor should be taken into account when making calculations.

Which T8 lamps to choose?

A large number of readers ask which lamps to choose and where is the best place to buy. If you are interested in high-quality and proven T8 LED lamps, I recommend buying Philips. They provide European quality; the requirements for lamps in Europe are much stricter. Philips does not inflate the specifications, as domestic brands do.

I checked many stores looking for the best value for money. The best was the discount store Sibertek.ru Online store of chandeliers and lighting fixtures The first discounter in Russia, wholesale prices at retail.



Types according to connection diagram

Installation and connections of T8 LED tubes

Let’s determine in advance that the ballast is a ballast, the same as the ignition unit for xenon. Electronic ballasts are an electronic version that performs the starting function.

According to the connection diagram, they are divided into 3 types:

  1. regular connection instead of standard luminescent ones, as a rule they are only compatible with old electromagnetic ballast and cannot be installed with electronic ones;
  2. The ballast is removed and the tube is connected directly to 220V;
  3. The ballast is dismantled, the new ice bulbs are powered by an additional 12V power supply.

In fact, the model with a built-in driver is a full-fledged lighting device that only requires a 220V socket and a wire. Therefore, they can be equipped with electrical wires with a special plug and switch.

All connection options with built-in driver

Wiring connections depend on the model, please check before purchasing:

  • connection on the left side;
  • from the right;
  • at both sides.

T5 lamps

Difference between T5 (above) and T8. Set of wires for separate connection

..

T5 lamps are a variation of T8. They are widely used in retail counters, especially with refrigerators. A long light source is suitable for the aquarium; sometimes LED strips or rulers are installed, but they are not splash-proof. In addition, the fish may try to tear off the LED, mistaking it for food.

Simple modernization of the lamp

In addition to the standard types of installation of G13 T8 diode lamps, I also have my own designs that you can repeat with your own hands. My method is 2-3 times cheaper, but a little more complicated. Based on the use of LED strips and 12V power supplies. Appearance It will turn out different, but no worse. Do you often look at the ceiling indoors? In addition, they are covered with bars to prevent blinding.

The body of the raster lamp has a reflector installed on the base, which we use.

  1. remove fluorescent tubes;
  2. remove the ballast filling;
  3. We glue an SMD 5050 LED strip with a density of 60 LEDs per meter onto the reflector;
  4. glue 8 pieces of 50 cm each;
  5. we combine food;
  6. install and connect the power supply.

The rated brightness of the standard is 3600 Lumens, taking into account losses the result is about 650 Lumens from one tube. 1 meter on SMD 5050 LED diodes gives about 700 Lumens. In order not to glue 8 pieces of 50 cm each, you can use double-width tape, you will get 4 pieces.

Such modernization increases maintainability and significantly reduces its cost. Even if the LED diode fails, only a segment of 3 LEDs will go out.

For one rework, one will need 4 meters, 700 Lumens per 1m. it will be 2800 lm, a little less, but not significantly. You can also use a more powerful option, for example ice rulers on SMD 5630 and 5730. You will only need 150cm of them, 3 pcs. 50cm each.

Upgrade cost

Let's calculate what benefits we will get from independent modernization.

Let's calculate the rework.

  • tape price 135 rub./m.;
  • 4m. cost 540 rubles. This is enough to replace 4 tubes;
  • with the usual method it will cost from 1200 rubles, with a minimum price of one 300 rubles.

In order not to install 1 unit for each, we will install 1 power supply for 4-6 lamps.

Let's calculate for an office 6 fluorescent pieces.

  • my method: 540 * 6 = 3240 rub., plus 1000 rub. to the power supply;
  • regular: 8400 rub.;
  • total: mine from 4240 rubles, regular from 8400 rubles.

The gluing procedure is very simple:

  1. wipe the installation site;
  2. carefully glue;
  3. put connectors on the ends or solder wires;
  4. put all the pros and cons together.

Anyone who has ever held a soldering iron or changed a T8 G13 lamp can handle this. And for those who are really bad with this, amateur radio stores sell ready-made kits with ready-made step by step instructions for replacement with diode strips.

Replacement video

A foreign colleague will tell you and show you how to properly replace them with diode ones. Everything is shown in great detail and will be clear without words or translation.

Example prices

Beware of Chinese products without a listed manufacturer. The Chinese are lying about everything regarding LEDs. They use their favorite method: they install a weak crystal in a standard LED diode housing, the power of which is 3-5 times less than the branded one. And the characteristics are written on the product, as if branded LEDs were installed.

But on the domestic market there are inexpensive and good models with an affordable price starting from 290 rubles. for 1 piece

But the best way is to sell the installed old raster ceiling lights and replace them with modern LED panels. Their thickness is 1-3cm. and the cost for small wholesale purchases is from 1000 rubles. for the 3600 lm model. with Japanese quality diodes.

Introducing LED linear lamps T8, produced by the company – our long-time partner in LED lighting products. These types of LED lamps are similar in shape to conventional tubular fluorescent lamps. They got the name linear because they provide a line of continuous light.

Such lamps look very organic in corridors or elongated rooms. They are usually located parallel to the long axis of the room.

Abbreviations and numbers in the marking of a T8 lamp with a G13 socket

According to the designation system used in the USA, linear or tubular lamps are marked with a capital letter “T” and a one- or two-digit number. The letter T is an abbreviation of the English word “tubes” or “tubes”. The number indicates the diameter of the glass tube of the lamp.

In the American designation system for linear fluorescent lamps (in the US they are called fluorescent lamps), the digital part corresponds to an integer multiplied by 1/8 inch. For example:

  • T2 is 2/8 inch or 0.25 inch (“finger”) or in and equals 1/4 x 25.4 mm = 6.35 mm;
  • T5 – 5/8 in or 15.875 mm;
  • T8 – 8/8 in – 25.4 mm;
  • T12 – 12/8 in or 38.1 mm.

To simplify, the diameter is rounded to convenient values ​​- 6, 16, 25, 38, etc. Therefore linear LED lamp Led T8 has a real diameter of 25.4 mm, conventionally rounded to 26 mm.

The length of a llama's bulb is usually proportional to its power. For T-type LED lamps with a two-pin G13 base, the website offers three lengths - 600, 900 and 1200 mm.

T8 tube lamps with LEDs

LED linear lamps with G13 socket are intended to replace fluorescent lamps in previously manufactured luminaires. They have appropriate installation dimensions and lighting characteristics. Lamps T8 220V They operate directly from AC power, so they do not require separate power supplies.

An example of such lamps would be a lamp of the ECOTUBE category model.

A special feature of the lamps presented on the site is a rotating base. A flat LED strip is installed in the lamp tube, giving light not in all directions, but only in one direction. After installing the lamp in the lamp, you can turn it and direct the flow of light in the required direction. This feature is reflected in the lamp marking with the letters DR (Dado Rotating - rotating base).

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