How to Judge the Heat Dissipation Performance of LED Fixtures and Select Suitable Lights?

Why We Need Heat Dissipation?

Why are we paying attention to heat dissipation in the LED era, but seldom consider this issue for previous light sources such as incandescent lamp?

Because they are not afraid of high temperatures, such as incandescent lamp, they rely on temperature to emit light. Without heat, there would be no light. But for LED, temperature will be fatal. Excessive temperature will decrease the performance, lifespan, and even directly damage it.

How to Judge?

Let's return to the topic, so how to judge the heat dissipation performance of LED fixtures?

By hand?

Reasonable, but not enough. And there is a certain level of danger. I wouldn't recommend you doing this.

By touching with your hand, you can only draw two conclusions

1. It's very hot → the heat dissipation performance must be poor.
2. Not too hot → The heat dissipation performance may not be good either, as it may be due to the poor structural design that the heat cannot be exported. You think it's cool, but in fact, the LED has already suffered heatstroke.

Is there any scientific method to judge? Of course there is.

Professional instruments for temperature rise testing

You can clearly know the temperature of each position during the operation of the lamp. But the disadvantage is that it needs to be sent to the laboratory, or you have professional instruments.

Half hour illumination method

Generally speaking, when the junction temperature of an LED (the temperature of the PN junction inside the LED chip, abbreviated as the junction temperature) increases, the luminous flux will decrease. So, we only need to indirectly measure the change in illuminance of the lamp at the same position to deduce the change in junction temperature (only the illuminance is needed)

What simpler and more reliable method is there?

Is that all for now? Is there a simpler but more reliable way?

Yes, my solution is- Find a reliable, trustworthy, and strong R&D partner to do these things for you. For example, AGC Lighting.

AGC has been a recognized market leader in industrial lighting and outdoor lighting in China. We provide you with the most reliable product& solution, no longer worrying about heat dissipation or other issues. Reliable products and a strong optical design team provide strong support for your project. You can find suitable products at AGC for almost all industrial and outdoor applications.

Your choice is our greatest honor, if you are looking for a suitable product or would like to know more about us. Don't hesitate to contact us!