T5 Fluorescent Bulbs For Cleanroom

  • 17, 09, 2019

What are T5 bulbs?

T5 bulbs are fluorescent bulbs that are 5/8" of an inch in diameter. Differences in length and socket pin design versus conventional fluorescent lamps prevent any problems with electric circuits or human factors. This section focuses on the physical characteristics of T5 systems compared with T8 systems.

What does T5 mean?

The "T" in lamp nomenclature represents the shape of the lamp-tubular. The number following the "T" usually represents the diameter of the lamp in eighths of an inch (1 inch equals 2.5 centimeters). T5 lamps have a diameter equal to 5 times an eighth of an inch, or 5/8". These lamps are approximately 40% smaller than T8 lamps, which are one inch in diameter, and almost 60% smaller than T12 lamps, which are 1½" in diameter. T5 lamps have a miniature bi-pin base while T8 and T12 lamps use a medium bi-pin base.

Are T5 lamps the same length as T8 lamps?

T5 lamps are slightly shorter than T8 lamps and therefore cannot be used as replacements for the larger lamps. Some luminaires, however, can be made to accept either T5 or T8 lamps by changing the sockets and ballasts.

T5 bulb

Some outstanding advantages of T5 fluorescent lamps

1. Power saving

With the same brightness, T5 fluorescent lamps save up to 40% of fuel compared to T8 fluorescent lamps and 52% compared to T10 fluorescent lamps.

2. Low temperature emitted to the environment

T5 is suitable for offices using air-conditioning, factories with high requirements for energy saving while ensuring brightness and efficiency.

3. Long life

Lamp life is up to 15,000 hours, 2 times that of old T10 bulbs. The luminous flux loss is low, 5% after 10,000 hours of operation, so the bulb does not go black.

4. Widely-used

The power-saving T5 bulb is suitable for installation, replacing T8 / T10 bulbs when you want to keep the light fixture. T5 energy-saving lamps are designed for many types of light sizes, capacities, types, and colors, so they are widely used in household and industrial fields.

The voltage from 170V to 230V of this bulb is suitable for places where there is not enough voltage.

5. Self-protection function 

When the current changes suddenly, the T5 will automatically disconnect or adjust the voltage accordingly, so it does not cause a short circuit.

6. Environment friendly

The tube diameter of T5-TKD is 16mm, so the amount of sulfur is reduced compared to T10 lamps.

The mercury content of lamps of T5-TKD is 10 times lower than that of T8 / T10 lamps. The lamp has a radiation protection film between the inner surface of the bulb and the sulfur and mercury layer so it does not affect the eyes.

Operating frequency from 30KHz to 40KHz does not cause eye strain.

7. Appearance

T5-TKD lamps are compact and highly aesthetic, the frame material is made of high-quality aluminum and plastic so it is not rust, corrosion, or discoloration for a long time.

9. Easy installation

T5-TKD lamps are suitable for replacement installation for T8 / T10 lamps.

To have a complete T5-TKD luminaire, first remove the T8 / T10 bulb, then mount the T5-TKD.

Newly installed T5-TKD fluorescent bulbs are suitable for new installations with power plugs between the light frame.

10. High-quality lighting

The light color depends on the purpose of the users. The light of the T5-TKD is brighter thanks to the reflector.


Fluorescent bulbs T5 with power ranges of 14W / 28W / 35W and diverse types, structures are widely used in industrial and household lighting such as:

- Factory - Supermarket - Office - Household

- Hospitals - Schools - Shops - Hotels

- Cleanroom - Labs

- Suitable for businesses in the textile, garment, leather, seafood processing, percussion processing, handicrafts,....

Contact VCR now for more useful information!

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