LED Tube Light Not Working-10 Best Tips

Last updated on October 17th, 2023 at 09:14 pm

Today, comfort has become a basic need of humans. Comfortable living is the priority of man. Vital features of a comfortable home include thermal comfort, healthy indoor, healthy ventilation, good acoustics, and a good light source.

A good source of light has a vital role in making a home comfortable. Today, the most popular source of light is LED lights. LED tube lights are long, lined lamps designed to function in traditional fluorescent fixtures.

These days LED tube lights are considered the most suitable, trustable, and cheap light source.

How A LED Tube Lights Works?

A LED is a semiconductor that emits light. A LED tube light consists of a small light-emitting diode. When an electric current pass through a light-emitting diode, the electrons recombine with holes, which emit light in this process.

Reasons for Your LED Tube Light Not Working

There are several reasons why your LED tube light not working. Some of the reasons are as follows:

  1. Electrical Resistance
  2. LED Driver’s Failure
  3. Over-Heating
  4. Incorrect Voltage
  5. Power Supply Issues
  6. Loose Connections
  7. Short Circuits
  8. Low-Quality LED tube light
  9. Too Old LED Tube Light
LED Tube Light Not Working-10 Best Tips

Tip 1: Check For Electrical Resistance

Poor electrical contact and corroded copper can cause excessive electrical resistance. Must check the light emitting diode (LED) strip wiring and make sure that all the contacts are clean and appropriate.

Tip 2: Provide the Correct Voltage to the LED Tube Light

LED tube lights are now the most suitable lights for home usage. These lights are available in different sizes and voltages. The most common LED tube lights include:

  1. T8 LED tube (1-inch diameter)
  2. T12 LED tube (1.5-inch diameter)
  3. T5HO LED tube (5/8 inch diameter)

These lights are available in different sizes and need different voltages to work. You should take care in providing the correct voltage according to their sizes. The large-size LED tube light needs more voltage than a smaller size.

Before installation, first, read the specifications provided by the company. Provide the correct voltage to the LED tube light to avoid upcoming damage.

Tip 3: Check the Compatibility Of the Current Rating With Your LED Tube Light

The power supply and the current flow must be compatible with the LED tube light. For example, your current flow of power supply is 14V DC, and your LED tube lights work with 24V. So the LED tube lights will not work with this current rating.

Check the power supply unit, it has the output voltage marked. And check the LED tube light, it has the input voltage marked on it.

Tip 4: Check Your Power Supply is Working Correctly

If your LED tube light is not working, confirms that your power supply is working properly. It can easily be checked by using a multi-meter to confirm the voltage across the two output wires. The voltage between the DC plug’s inner pin and outer barrel should specify a voltage differential.

If it indicates a voltage less than its ranked voltage, you may have a faulty power supply. Remember that the power supply must be powered up for this test.

Tip 5: Check For Any Loose Connections

Make sure all of your connectors and wires are in place and working properly. Tighten up all the screws on DC adapters, and re-inserting LED strips into solderless connectors, which are common contact failure points.

Test each point along the circuit for a voltage variance between the positive and negative (ground) wires/terminals with the help of a multimeter. Switch on the power supply’s DC output and make your way to the LED tube light.

If the LED tube light’s positive and negative copper pads do not have a voltage differential, power is not being fed to the LED tube light due to a malfunction.

Tip 6: Check For The Short Circuit

If your LED tube light is not working check if there is any short circuit that exists. If there isn’t any visible short circuit, check the invisible short circuit. This can be simply checked by using a multimeter. The positive and negative terminals of the LED tube light connect to the multi-meter and check the resistance value.

The multi-meter indicates infinite resistance if there is no short circuit. If the multi-meter indicates any resistance value it means there is a short circuit. In case of short circuits disconnects all the accessories and wires.

Tip 7: Check For The Overheating

Overheating is of one the major cause of the not working LED tube lights. The high voltage and the low voltage can cause overheating of the LED tube lights. As LED lights work at high temperatures but they can handle the heat till a specific limit.

There is a heat sink that protects the LED lights from overheating. To avoid the malfunctioning of LED lights make sure there is a heat sink, and provide proper voltage.

Tip 8: Check For The Drivers

Must check the drivers if your LED tube light is not working. As there are two types of built-in drivers in modern LED tube lights which are as:

  1. Constant Current
  2. Constant Voltage

If your LED light not working check that they have a built-in driver. If there are no built-in drivers available in your LED lights, then you have to purchase these drivers for the proper functioning of the LED tube lights.

Tip 9: Don’t Compromise On Quality

If your tube light is not working quality of the product could be a reason. Always purchase a good quality product. The low-quality or cheap products can cause a disturbance. Purchase LED tube lights and accessories from a good and certified brand.

Tip 10: Replace The Old LED Tube

Replace the too-old LED tube light. if your LED light is too old it can also be the cause of not working or your light. The old LED light stops working after a few times. So if you are also facing this replace your old LED light with a new one.

As LED Tube lights are modern and trendy, it has a little bit different function than common lights. While purchasing and installing the LED tube lights, you must have a lot of questions in your mind. Some of them may be:

What is the lifespan of A LED tube light?

The lifespan of LED tube lights could be 50,000 hours or 5 to 6 years approximately.

Do LED tube lights work in cold weather?

Yes, LED tube lights efficiently work in cold weather as in other environmental conditions.

Why LED tube lights need a driver?

LED tube lights work with 12V or 24V of constant DC, so LED drivers are required in all LED systems.

Do LED tube lights get hot?

Yes, with high efficiency, new technology LED tube lights have drawbacks, they can get hot.

Are LED tubes safe?

LED tubes are designed with harmless materials that are free from lead, mercury, and other toxic components, so LED lights are safe for everyone.

Do LED tube lights need AC or DC?

LED tube lights commonly need a DC power supply.

Can LED tube light run on any voltage?

LED tube lights run on 12 V or 24V of DC.

Why does my LED light go out after some time?

This usually happens when your LED tube light becomes too old. A short circuit can also be the cause of this.

Also, Read This: Why Does one Recessed Light Stop Working? Solutions

Final Thoughts

Hopefully, this article will resolve your problem of not working your LED tube lights. If your problem is still not resolved and your LED light is not working, then you have to contact your electrician or manufacturer company to provide you with services and solve your problem.

May all your lights always work accurately and efficiently!