T8 LED Tube Light – Ultimate FAQ Guide

T8 LED tube light is interior LED tube light. It is a linear tube with a 1-inch diameter and different lengths. It might have a simple single pin base or might be a bi-pin.

This ultimate FAQ guide will let you know every detail about the T8 LED lights, so you do not feel confused while checking for some. It answers all your queries related to T8 LED Light Tube, its type, typical application, maintenance, and everything you need to know.

Below are the questions that would be discussed in detail further in the guide. So, let’s dive into it!

1. What Is T8 LED Light?
2. What Does T8 Mean While Talking About LED?
3. How Can One Identify If the Bulb Is T8 Or Not?
4. What Are the Size and Power Ranges for T8 Light Tube and Bulbs?
5. What Is the Efficiency of T8 LED Bulbs?
6. What Are the Benefits of T8 LED Bulbs?
7. How to Install T8 LED Tube Light?
8. How Many Lumens Does a T8 LED Bulb Offer?
9. Can T8 And T12 LED Bulbs Be Used in The Same Socket?
10. How Is T8 LED Light Different from Others (T5 And T12)?
11. What Is the Difference Between T8 LED Tube Light Integrated and Non-Integrated?
12. Are T8 LED Bulbs Flammable?
13. What Is the Life Span of T8 LED Bulbs?
14. How Much do T8 LED Bulbs consume electricity?
15. Are There Any Harmful Effects of T8 LED Lights on Human Health?
16. Is T8 LED Tube Light Harmful for Your Eyes?
17. Which Is the Best Way to Protect Your Eyes from T8 LED Lamp?
18. Do T8 LED Tube Lights Negatively Impact Sleep?
19. Can T8 Lights Be Used for Growing Plants?
20. Do T8 LED Bulbs Have Mercury in Them?
21. How To Choose The Color Temperature For T8 LED Tube Lights?
22. What Are the Types of T8 LED Tubes?
23. How Does Direct-Fit Type of T8 LED Tube Work?
24. What Are the Benefits and Disadvantages of Using Direct Fit T8 LED Tube?
25. How Does Plug-And-Play T8 Tube Lights Operate?
26. What Is the Working Procedure of T8 LED With External Driver?
27. How Is External Driver Based T8 LED Useful or Disadvantageous?
28. What Is Meant by Hybrid T8 Linear Tubes?
29. What Are the Advantages and Disadvantages of Using Hybrid Tubes?
30. Which T8 LED Lamp Is the Brightest?
31. Can You Convert a Fluorescent Bulb to T8 LED Bulb?
32. Why Are T8 Bulbs Better Than Fluorescent Lamps?
33. Why Should You Replace Fluorescent Tubes with T8 LED Tubes lights?
34. Can T8 LED Tube Lights Replace Fluorescent Lights in Parabolic Light Fixtures?
35. Can You Dim T8 LED Tube Lights?
36. Which LED Dimmer Switches Should Be Chosen for T8 LED Bulbs?
37. How to Choose T8 LED Tube Light Best Suited for You?
38. How to Check If T8 LED Bulb Is Compatible with The Shunted or Non-Shunted Tombstone Configuration?
39. Which T8 LED Lights Manufacturers Are the Best in China?

1.    What Is T8 LED Light?

T8 Light Tube is a LED light with different lengths. It is a lighting technology in the 4th generation.

T8 LED tube light is an interior LED that generally replaces a T8 fluorescent lamp. It is an LED tube with a 1-inch diameter and different lengths. It might have a simple single pin base or might be a bi-pin.

These are generally used in high bay fixtures and other lighting applications. They give the best performance in climate-controlled areas, like storage houses or mechanic garages.

These are quite an energy-efficient replacement for fluorescent lamps that give out the best results without requiring high maintenance.

2.    What Does T8 Mean While Talking About LED?

T8 is the abbreviation for the size and shape of the Tube. The T in T8 stands for Tube or tubular. It is the shape of the LED lamp. The 8 in the T8 tells us about the lamp’s diameter, which is 1/8th of an inch.

Calculating the size, a T8 LED lamp is about 2.54 cm in diameter, which is the eighth part of one inch.

3.    How Can One Identify If the Bulb Is T8 Or Not?

A few factors play their role in letting you decide whether the bulb is T8 or not. These factors include shape, length, width, wattage, and color temperature.

Mainly shapes are there in the market. If the bulb body is tubular, then there is a high chance that this bulb will be T8. If you have a tube, then the shape is linear and long, with two metal pins at the end. The T8 Tube will need more factors to be identified.

The length of the bulbs varies from bulb to bulb, depending upon the type of the bulb. Measurements of the tubes are, however, directly dependent on the diameter of the Tube. T8 LED tubes generally have a diameter of 26mm. T8 bulbs have varying sizes that might be 2ft, 3ft, 4ft, 5ft, or 6ft.

The wattage might also help you decide which one is the T8 bulb, but it might not be an assured factor because T8 and T12 bulbs are generally interchangeable by adjusting the wattage and size of the bulb.

The last factor is color temperature, but it might not help you much with the confusion. Generally, the color temperature is written on the plastic base or on the bulb itself.

4.    What Are The Size And Power Ranges For T8 Light Tubes And Bulbs?

The T8 LED bulbs to have a fixed diameter, which is 26mm, but the bulb’s size and the length of the Tube vary.  A good variety of sizes are available in the market. The tubes range from 12 inches to 96 inches. The power ranges differ from one size to an extent, from 3w to 60w.

All leading manufacturers of the fluorescent Tube have been continuously working to reduce power consumption from the typical 36 / 40W to 18W. T8 LED Light Tubes, being a little more expensive, are still a better investment than fluorescent tubes.

Comparatively, a LED lighting solution delivers more lumens per watt than the fluorescent tubes. A T8 LED Light Tube that can replace the 36 / 40W fluorescent Tube consumes about 15-18 Watts.

5.    What Is the Efficiency of T8 LED Bulbs?

LED replacement bulbs are much more helpful and efficient as compared to simple fluorescent bulbs. On average, these bulbs are 50% to 60% more efficient.

The LED bulb not only give more light but also use fewer units and saves power. They use less wattage comparatively.

6.    What Are the Benefits Of Using T8 LED Bulbs?

T8 LED lights to save energy and emit less light. They can control the load on the system. They are more flexible and offer a variety of designs. Here are some of the benefits of replacing your light with T8 LEDs:

Directional: T8 bulbs offer you a specialized directed light. You can direct the light precisely at the place where you want it to be. It does not give you diffused light spread over a large area instead of the right place.

Dimmable: Sometimes, a bright light gets disturbing, and you need to have a dim light. A dimming feature is often required for the light.

The fluorescent lights did not offer this feature. However, T8 LED lights to provide a straightforward dimming option. You can set the brightness according to your need.

Energy-efficient: T8 LED lights are 50% more efficient than standard fluorescent bulbs and tubes. They save power and use less electricity. So substitute old technology T8 to LED can save you 50% on energy bill.

Controllable: LEDs can work efficiently with different control systems. They have various sensors and can be controlled easily. Fluorescents did not provide this function.

Better quality of light: T8 LEDs give a better quality of light than fluorescent bulbs. It is because of the color temperature variations enabled in the LED bulbs. Moreover, unlike fluorescents, LED bulbs never flicker. One can enjoy continuous and adjustable light from a single button.

7.    How To Install T8 LED Tube Lights?

LED tubes are mostly of different types when it comes to installation. Some of them have single-end power, while others have double end power.

For installing the single power LED tube light, follow these steps.

• Before starting the procedure, make sure that you have disconnected the main power.
• Take the ballast and cut the output wires from it. After cutting the cables, the ballast itself is of no use, and it is totally up to you whether you want to keep it or remove it.
• With a non-shunted lamp holder’s help, connect the N and L wires to the N and L ends of the lamp holder.
• Next, you need to install the lamp and bracket. Turn the power up and start using it.

For installing the dual power LED tube light, the procedure is almost the same as the single power tube light, but the third step has some changes.

You have to connect the N and L wires to the mains with the 2-terminal lamp holder input wires.

For customized T8 LED bulbs, please contact your T8 LED lamp manufacturers for specific installation guide.

8.    How Many Lumens Does A T8 LED Bulb Offer?

Different sized T8 LED bulbs use different powers. The lumens offered by other T8 LED bulbs are directly dependent on the power range of that bulb.

The lumen efficiency of the T8 LED tube also varies depending on the led tube light factory. Most T8 LED manufacturers offer from 100lm/w to 160lm/w.

So if you are buying an 18w T8 LED Tube with 150lm/w lumen efficiency, the total lumen output is 18w x 150lm/w = 2700lm.

Or you can simply request a testing report from T8 LED tube manufacturer, which can clearly show the lumen output for the specific item.

9.    Can T8 and T12 Bulbs Be Used In The Same Socket? 

Yes, T8 and T12 LED bulbs can be easily used in the same socket, and they are also interchangeable. The difference between T8 and T12 is only the diameter. The diameter of T8 tubes is 1 inch as compared to 1.5 inches of the T12 tubes.

Both the T8 and T12 bulbs and tubes are mostly bi-pin, and hence you can use them with each other’s fixtures. Both of these need a bi-pin connector for operation.

Most people prefer using T8 over T12 LED bulbs and tubes. The reason is the ease in the operation and durability of T8 bulbs. T12 bulbs work with magnetic ballasts, whereas T8 operates on electric ballasts. Magnetic ballasts run out soon and hence the bulb, so the tubes do not last long. To use a T8 bulb in replacement of T12 bulbs, you simply need to change the ballasts.

10.  How Is T8 LED Light Different from Others (T5 And T12)?

There are two significant differences between T8 and other LED tubes. The first difference is in the socket type, and that is the difference in diameter and pin. The second difference is the efficiency rule.

The difference in diameter and pin:

The diameter of the T8 LED tube is 26mm. The diameter of a T5 tube is less, and that of T12 is greater than T8. The exact diameters of T5 and T12 are 16mm and 38mm, respectively.

T8 uses a G13 bi-pin socket. The same bi-pin socket is used by the T12 LED tube, but the pin used by T5 is different from both of these. T5 LED Tube uses the G5 pin, which is smaller than T8 and T12.

The difference in efficiency rule:

The efficiency of the LED tubes depends upon their diameter—the higher the diameter, the more energy consumed by the tubes and the lesser the Tube’s efficiency. T5 is more efficient than T8 because it will require less power than T8 under the same given time.

11. What Is the Difference Between T8 LED Tube Light Integrated and Non-Integrated?

Integrated LED fixtures are the ones that have built-in LED arrays. The integrated LED fixtures are specifically designed. They give out an assigned color and lumen output. The bulbs used in the integrated LEDs cannot be replaced as they are not ordinary bulbs.

The integrated bulbs are generally long-lasting, and they have a life span of about ten years but once worn out, they never function again.

Non-integrated fixtures are used for many common bulb type with a suitable size and wattage that can be easily replaced if the bulb fuses or burns out. The quality of the light is often compromised in non-integrated LED bulbs.

The luminaries of the non-integrated bulbs function for a long time, and hence these are more preferred because it is easy to change the bulbs. The integrated bulbs are more energy saving.

12.  Are T8 LED Bulbs Flammable?

No, the T8 LED bulbs are not flammable. The main reason for a bulb causing a fire is the emission of light from the vacuum. LED bulbs do not emit any glare from the vacuum, so they do not catch fire.

It is highly recommended not to leave the T8 LED bulbs turned on for an extended time unless it’s necessary to shorten the lifespan of the T8 LED Bulb

13.  What Is the Life Span of T8 LED Bulbs?

The average lifespan of a T8 LED bulb is calculated to be 50,000 hours. The T8 bulbs’ functioning and their life expectancy depend upon many factors, mostly the bulbs’ condition and the usage of the bulb.

The estimated range is between 20,000 to 50,000 hours. The T8 LED bulbs might last longer than 11 years almost.

14.  How Much do T8 LED Bulbs consume electricity?

LED lights are more energy-saving than fluorescent lamps. A standard T8 fixture uses 36-40watts of power. A T8 LED Bulb consumes about 15w-18w of electricity to function. A T8 LED Bulb saves up to 50-60% more electricity than a fluorescent bulb.

15.  Are There Any Harmful Effects of T8 LED Lights on Human Health?

The T8 LED lights are more energy-efficient than the fluorescent light and last longer. That is what makes T8 Lights more economical and environmentally friendly. Reliable information sources show that LED lights are not harmful to the skin.

However, the type of LED lights used in some particular screens and toys contain blue light. It might cause damage to health if exposed for a more extended period. The T8 LED Light does not have ultraviolet rays and are safe to use, and can be used indoors as a secondary source of light.

16.  Is T8 LED Tube Light Harmful for Your Eyes?

Yes, some of the T8 LED lights might hurt human eyes. Primarily the blue LED can have drastic effects.

Some aspects of the blue light harshly affect the retina of your eye. Continuous exposure to the blue light of LEDs can affect the sleep rhythms and disturb the sleep cycle.

The loss causes to the retinal cells is irreversible. The exposure is rendered phototoxic because it might cause you to lose your vision’s sharpness and weakened eyesight.

17.  Which Is the Best Way to Protect Your Eyes from T8 LED Lamp?

There are many ways to protect your eyes from the damage caused by LED blue lights. Here are some of the ways to protect your eyes from the T8 LED lamp.

the best way is to give your eyes as much rest as possible. Try not to make direct contact with these lights. When you manage to spend less time in blue light, your eyes will not be affected much.

You can try to go for some other color temperatures and avoid blue light LEDs. Using color balancing glasses is also helpful in preventing the eyes from the LED light’s harmful effects.

18.  Do T8 LED Tube Lights Negatively Impact Sleep?

There is a high possibility that LEDs that contain blue light can disturb the sleeping pattern. There is a relationship between light and the brain. Blue light boosts the level of alertness and causes the human brain to function like it is still day, even at night.

Extended exposure to LEDs that emit blue light will slow down melatonin production, a hormone that controls sleep. It is better to turn the LEDs off at least 30-60 minutes before sleeping.

However, since Tube’s under-discussion does not emit blue light, no specific incidents have been reported about T8 LED Tube Lights disrupting the sleeping schedule.

19.  Can T8 Lights Be Used for Growing Plants?

T8 LED Lights, being environmentally friendly, can be used for growing plants. For better results, the lights can be placed at four equidistant levels higher than the height of plants.

20. Do T8 LED Bulbs Have Mercury in Them?

T8 LEDs hold several advantages when comparing with Fluorescent light. One of the main pros that the T8 LED Bulbs has is; they are mercury-free. It makes them environmentally friendly and recycles free.

21. How To Choose The Right Color Temperature For T8 LED Tube Lights?

T8 LED Tube Lights are usually used in working spaces, warehouses, indoor market places, and homes. When installing T8 LED Tube Lights, it is essential to choose the right color temperature according to the coverage area.

T8 LED Tube Lights’ color temperature usually ranges from Ultra Warm that is 2000Kelvin, to Daylight – which is 8000 Kelvin. The color temperature varies based on the effects they leave on objects, associated mood, and the area where they have to be applied.

If the T8 LED Tube Light applications are at Hospitals and Offices, the most appropriate color temperature would be 6000K. It would give out immensely alert and vibrant vibes.

If the application area is at supermarkets and showrooms, 4000K – Cool white would work correctly. It would enhance the quality of most colors.

Residential areas and hotel lobbies mostly have Soft, warm white between 2700K-3000K and enhance the red and orange colors.

2000K – 2500K, Ultra Warm T8 LED Tube Lights to work well for butcher stores and city beautification.

22. What Are the Types of T8 LED Tubes?

There are four types of T8 LED Tubes;

Direct Wire LED Tube: These are the LED Tubes that bypass the electronic ballast. It will run off of the direct line voltage.

Electronic Ballast Compatible Tube: They have a design that works with electronic ballast and functions even without the device.

Hybrid Tube: The Tube that can function with or without ballast installations.

Universal Ballast Compatible LED Tube: The newest and most expensive type of tubes can work with electronic ballast or magnetic ballast.

23. How Does Direct-Fit Type of T8 LED Tube Work?

The T8 LED Tube’s direct-fit type allows the user to directly bypass the electronic ballast without passing through its complex circuitry. It will now run on the line voltage of AC100-277V. Moreover, some tubes can also work with AC277-347V.

24. What Are the Benefits and Disadvantages of Using Direct Fit T8 LED Tube?

Advantage: It’s directing wiring to the main power line, eliminates the complexity of ballast, and reduces the cost that can be spent on the replacement of ballast.

Disadvantage: while installation and retro connection to the primary voltage line can cause safety hazards. Total installation cost can increase due to safety precautions that are needed to be taken.

25. How Does Plug-And-Play T8 Tube Lights Operate?

Plug-And-Play T8 Tube Lights, also known as Type A Tube, are designed to work along with electronic ballast. However, they do provide functionality, even if not attached to the circuit.

They are pretty easy to replace. All you need to pull out the old Tube and replace it with a new tube.

26. What Is the Working Procedure of T8 LED with External Driver?

They function with an eternal driver that powers the LED Tube. Like Type-B T8 LED Tube Light, this type also requires modification to the existing fixture, and the low-voltage output of the external drivers is connected to the socket.

27. How Is External Driver Based T8 LED Useful or Disadvantageous?

Advantages: External driver-based T8 LEDs are useful when one cannot afford the downtime during the installation of new LED Tubes and replacing the old fluorescent tubes.

Disadvantages: They can be pretty disadvantageous where upfront cost of installation and replacement of ballasts are concerned.

28. What Is Meant by Hybrid T8 Linear Tubes?

Hybrid tubes are the type that can function with or without the installation of ballasts. They can also be wired directly to the main power line and connect to an electronic ballast.

29. What Are the Advantages and Disadvantages of Using Hybrid Tubes?

Advantages: Hybrid tubes can be advantageous because they can be used as a plug-and-play tube, and then when the ballast fails, you can connect the wire to the primary voltage line.

Disadvantage: One of the most prominent disadvantages is that when the ballast fails, the risk of electric shock increases as sockets carry line voltage.

30. Which T8 LED Lamp Is the Brightest?

The efficacy of any T8 LED Lamp depends upon two elements, the wattage and the lumens. With these elements, it is easier to check how bright the lamp would be.

The greater the lumen, the brighter the lamp under least power consumption. If you want the brightest T8 LED Lamp, go for the greater number of lumens produced per watt.

31. Can You Convert A Fluorescent Bulb to T8 LED Bulb?

Yes, Fluorescent Bulbs can be converted to T8 LED bulb. While replacing, you have two options of LEDs to choose from; one of them is the Plug and Play, and the other one is Retro Fit.

For Plug and Play:

You have to remove the fluorescent bulb from the fluorescent fixture and replace it with the LED Bulb.

However, a few things are to be considered;

1. The plug and play will work along with the ballast and will consume more power.
2. If the ballast stops functioning, you would have to replace the ballast.

For Retrofit:

There is no need for ballast and shunted connectors that you have pre-installed in the fluorescent fixture. You can replace the shunted connectors with non-shunted connectors because they have a circuit that goes to each side of each terminal. After all, T8 LEDs with retrofitting have the power supply only at one end. The other end can be capped off.

32.  Why Are T8 Bulbs Better Than Fluorescent Lamps?

Mercury Free: T8 LED Bulbs are mercury-free. This makes them environment friendly. Fluorescent Lamps are the opposite and have mercury in them.

Better Efficiency – Because T8 Bulbs are 50-60% more efficient than Fluorescent lamps.

Better Lifespan – The life of a T8 LED Bulb is 50,000 hours, whereas, 7000-15000 hours for an average Fluorescent lamp.

T8 LED Bulbs Are Shatterproof:  The T8 LED tubes are produced to make them shatterproof that is very unlikely of Fluorescent Lamps.

33.  Why Should You Replace Fluorescent Tubes with T8 LED Tubes lights?

T8 LED Tube Lights are a better alternative than the Fluorescent Tube because they do not shatter while changing, have a better life span, and their rays are non-toxic for human health. T8 LED Tube Light has a better quality of light, and they are dimmable and non-heavy on the budget. So it is strongly suggested that change fluorescent T8 to LED T8 lamp.

34.  Can T8 LED Tube Lights Replace Fluorescent Lights in Parabolic Light Fixtures?

A Parabolic Light Fixture is used in warehouses and offices to reduce glare from lighting situations and provide a well-lightened place. A T8 LED Tube Light can replace Fluorescent lights in parabolic light fixtures because they work well in controlled climate areas. T8 LED Tube Lights have improved color rendering and are less likely to burn out.

35.  Can You Dim T8 LED Tube Lights?

Yes! The T8 LED Tube lights do come with dimming capabilities. However, where most of the T8 LED Tube Lights are dimmable, a range of T8 LED still do not have dimming capability.

Since dimmable T8 LED Tube Lights are capable to function on voltages as low as 3w, many dimmers fail to work on these voltages. However, trailing-edge dimmers are compatible with most of the T8 LED Tube Lights.

Additionally, a dimmer must be installed in order to regulate the voltage at 220V AC, which causes a density regulation in the tube. Available in 600mm, 1200mm, and lengths and shades of ultra-warm, warm, white and cool white.

T8 LED Tube Lights cut energy costs by almost half. With dimmable T8 LED lights, you have a benefit to regulate the light according to your requirements and preferences. They also give you complete control over your lighting environment.

36.  Which LED Dimmer Switches Should Be Chosen for T8 LED Bulbs?

Where most of the LED Tube Lights function just fine with the dimmers, there is still a wide range that is not compatible with dimmer switches. For such T8 LED Tube Lights, the Trailing Edge Dimmer Switches work the best.

Trailing Edge dimmer switches have the compatibility to work best with low wattage loads and can provide just the right amount of wattage required by your T8 LED Bulbs.

These dimmer switches can regulate the Tube Light intensity and increase or decrease them according to the coverage space.

37.  How to Choose T8 LED Tube Light Best Suited for You?

For choosing the best-suited T8 LED lamp, there are a few factors that you might need to consider:

1. Know Your Budget

While considering retrofit fluorescent tube T8 to LED Tube Light, it is extremely important to invest in something that will benefit you in the long run. Where T8 LED solutions are comparatively expensive than the others, they still save you a lot economically. T8 LED solutions consume less wattage which means less electricity bills.

2. 2. Consider the Lifespan and Maintenance

Before buying, consider the life span of your T8 LED Tube Light. Even though most of the T8 lighting solution have about 50,000 hours of life span, it is still important to know what are you investing in. Also, T8 LED Tube Lights have the benefit of least maintenance.

3. Know what color of light is required

You can choose the T8 LED Tube Light according to the color temperature that you want for your coverage area. The color temperature for T8 LED Tube Lights ranges from 2000K to 6000K.

4. Know Your Dimmer Switches

Not all dimmer switches are compatible with T8 LED Tube Lights. If you are replacing your old fluorescent lights with T8 LEDs and decide to keep the dimmer same as the old ones, you must check beforehand if the dimmer is compatible.

5. Ensure Its Compatibility with Your Transformer.

Some T8 LED bulbs may not function with all transformers because of the power wattage they consume because T8 LED requires minimal wattage. For instance, there is a 7-watt T8 LED bulb, and a transformer that requires a minimum of 10 watts to work, then there is a high probability that the mentioned LED Tube will not work.

38.  Does the LED Bulb Have Better Performance than LED Tube light?

Considering the attributes, the T8 LED bulbs are economical. They are widely available and friendly to install on your own. They have a compact nature. The light is concentrated and can sometimes be too lightened for the eyes, considering the place they have covered.

Whereas; LED tube lights are comparatively expensive and require rewiring if areas inside the existing fluorescent fixture. Unlike LED Bulbs, Tube lights have a more distributed effect on the coverage space, so they go easy on the eyes.

39.  Which T8 LED Lights T8 LED manufacturers Are The Best in China?

China has been leading the market of high-quality LED solutions. Here is one of the best T8 LED tube light manufacturers from China.

VST LIGHTING

With over 10 years of being in the LED Lighting, VST has been a pioneer of innovative technologies. They have been leading the pathway of mechanical, thermal and photometric LED solutions.

Considerable insight of VST goes into complications that China has in the LED industries. There are many competitors who are working over gaining heights by providing services that are not only poor but also of worst qualities.

However, there is no limit to the production line of LED solutions in China, and no doubt there are other companies who do provide quality products. VST being one of them, develops LED applications such as tube LEDs. Through diversification, they also manage to supply products to both businesses and industries.

Main products of VST Lighting include, LED Tube lights, LED Flood Lights, and LED Bay Lights.

With a strong management, VST Lighting also leads in customer care and satisfaction. Team VST makes sure their clients are satisfied and are well answered to their queries. Not only this, their production team is well trained for their work and make sure the end products you receive are defect-free and functional. VST believes in quality work but also offers you a market competitive prices for all their range.

This ultimate guide covers everything that you want to know about T8 LED Tube Lights. This guide takes you through various features of T8 LEDs and why they are the most leading type of LED Lights. This guide also helps you understand the technicality and what steps are to be taken while replacing fluorescent lights with T8 LED Lights.