Why are my LED lights not bright?

Why are my LED lights not bright?

The process of installing a led light can be tasking at times, and it doesn’t add much to your effort when the led light starts dimming almost after installation or just within a few periods of use. While led lights are adjudged the best form of lighting, owing to the energy-efficient feature it offers users, issues such as the light not been bright enough can be a turnoff.

There are a host of reasons why your led lights are not bright; ranging from improper use, loose wiring, inadequate power supply, among others. This article will walk you through these reasons and proffer possible solutions to tackle these common problems and improve the lighting situation of your led lights.

Why Are My LED Lights Not Bright?

Led lights are built to last an age, and when faults such as dimming are left unattended to, it can lead to very serious issues such as; short circuit, and economic loss. Here are five reasons why your led light is not bright:

Improper or inadequate power supply

Led lights will not turn bright at their maximum output, when there is an improper or inadequate supply of electricity to the lights, usually led lights work best at the rated power, voltage or current. When the power supply to the driver, does not match the rated power or voltage of the led light, the lights will not give maximum brightness.

To achieve the best results with your led lights, it is imperative that you know the best voltage rating for your house and get the right led light that matches your ranting for your home/office lightening.

Lose wire or LED bulb connection

When there is a fault in your electrical connections, it tells on your led lights, as it will affect your light brightness, and this can lead to issues like a short circuit, flickering, and some others if not traced and taken care of on time.

The led light chips often get affected when there’s a loose wire or loose led bulbs; making your led light to appear dim, instead of bright. Trace the connection if you can and ensure to tighten all loose nuts and wires. Similarly, if specks of dust are found in the drivers, ensure to take them out, to achieve maximum brightness.

When used for a long time

Led lights are affected by wear and tear just like every other electrical appliance, and this happens when the lights are used for a long time as they are built to last an age; with some led lights projected to last for over two decades, this will depend on how often you use it.

Once led lights have passed their overall luminosity, which ranges from 20,000 hours to over 100,000 hours. The output of the lights drops to about 70%, this giving rise to reduced brightness. So, if you are wondering why your led lights are not bright, the period of use is a factor.

High temperature

Led lights work perfectly fine in cold temperature than hot temperature as a lot of research in this area has proved this point to be true of led lights. While led lights can be bright even more in cold temperatures, its brightness is often reduced to 65% to 70% in very hot temperatures.

So, before you consider changing your led lights, because they don’t bright at maximum capacity, paying attention to the ambient temperature of your environment, can do you a lot of good, as it can be a contributing factor for your dim led lights. This situation shouldn’t pose an issue for you, as your led lights will return to maximum brightness, once the temperature is right for it.

Surge wattage

Another reason why your led lights are not bright is surge wattage, and when high load appliances such as washers, dryers, and microwaves are connected to the same circuit as your led lights, you will have your led light output reduced for a few minutes or seconds as the case may be. This is because these high load appliances often demand high surge wattage to turn on; during this period, you will experience fluctuations with your led light brightness until there’s stability.

The best way of finding a solution to the surge wattage disturbance will be to get a new circuit for your led lights and separate it from high load appliances so that they can function at maximum brightness.

Old Wiring

There’s no doubt that your wiring can contribute to how your led lights function. When high load appliances and others are connected with old wiring, it often affects the voltage, resulting in low overall voltage. This situation will, in turn, change your led lights brightness, old wiring is often too weak to handle high load appliances of today, and this can be a problem for your led light.

Another issue with old wiring is that led lights work differently from the traditional light bulbs. Connecting your led lights to the same circuits used for your old light bulbs can affect the overall brightness of your led lights, this is one issue you must address to obtain the best lighting solutions for your home and office.


No doubt led lights provide a better alternative to lightening than the traditional light bulbs, as seen in this article, your led light brightness may be affected by one or all of the reasons outlined above. To improve the brightness of your led lights and have them function at its overall lumen output, following the steps listed in this article will do you great good. However, this list is not exhaustive on its own, as your led lights may have some other reasons why it is not bright.

If you exhaust all the listed points on this article and still cannot find solutions to your led light brightness issue, getting a specialist or an electrician to look at your led lights will be a great way to find lasting solutions to your brightness issues. It is believed that this content has done you some good in helping you to find permanent solutions to your led bulb lighting issues.