Do LED Lights Get Hot?

Heather Clouse
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Why Do Lights Produce Heat?

Typically, light is created by passing electricity through a semi conducting material, which is hot. The amount of heat is directly proportional to the applied voltage. So, the higher the voltage you use, the more heat you get.

However, there are different kinds of light lights – LED lights; Cold Cathode Fluorescent tubes (CCFL’s) which are used in many computer monitors and in T5 & T8 fluorescent lights; and High Intensity Discharge lights which are easily seen on the road on MIR lights and Flood lights, for example.

All of these types of lights generate heat when they’re in use.

T8 fluorescent lights are one of the worst heat producers because of the high amounts of mercury they use in them, as CFLS use set amounts of electricity, which already uses less mercury.

LED lights are much cooler to the touch and have a lower rate of heat production in comparison to fluorescent lights and this is why many people choose them to place them on their table or desk, without worrying about them getting too hot.

How LED Lights Release Heat

LED lights are solid-state technology devices. They do not get warm like the old incandescent and fluorescent lights. They are designed to prevent heat from getting into the plastic encasing.

They do not even release much heat through convection.

This means that, in general, you will not have the same heat issues that are common with other lighting sources. But they do still create heat, and if you use them in a confined space, you need to be careful that they don’t burn a spot or create a fire hazard.

To counter the heat issue, you need to have adequate ventilation. Make sure that they are always cool to the touch.

There are two types of LED lights, the indoor and the outdoor LEDs. When deciding which type to buy, weigh in the amount of heat that will be produced.

Heat Production and Lifespan of LED Lights

I must admit that I, too have quickly answered this question with a : “Yes.” However, five minutes into an engaging discussion on online forums, I’ve found out how wrong I was in my assumption. I just wanted to learn more about these awesome lights that have wowed the world in the past couple of years and why they are so popular at the moment.

As you probably know, the LED stands for Light Emitting Diode.

This means that the light is produced by a semiconductor. And similar to power semiconductors, which have completely taken over real power transmission after many years of development and simplifying the use of power semiconductors, the LED lights have too slowly, but surely, replaced all others currently used for illumination.

So, how hot do LED lights get?

To answer this question, we have to start with the basics of semiconductors.

Most diodes will heat up when electricity is running through them. But heat is not heat generation.

If we use a semiconductor diode for generation, it will give off light, which is a very good way to convert electricity to light. This is because light generated by a semiconductor diode is very efficient in that it requires low energy to produce a lot of light.

LEDs have very high efficiency in terms of heat production.