Why LED Lights need to pay attention to heat dissipation?


Why LED Lights need to pay attention to heat dissipation?


heat dissipation

Why should led lights pay attention to heat dissipation? The traditional Light does not need that?


CFL, turn on by heat, and it does not matter if the temperature is not hot enough to melt the glass;
The halogen light is hot, but it has no effect on efficiency and life. It does not matter if it's not hot enough to melt the parts;
The tube temperature of the metal halide Light is very high, unless the high power usually does not require much attention to heat dissipation.

Why should LED Street Lights pay attention to heat dissipation?

"This is a high-power metal halide Light, if the heat is not good, can lead to the melting of the electrode, so it has a very thick electrical connector, and some will be in the water, heat dissipation. "

Why LED afraid of heat?


Each time how many watts for led Lights, because its scary heat, therefore, causes heat dissipation. LED is a semiconductor device, the high the temperature will shorten the service life, decrease the performance and exceed.
When the led chip works, it warms up. We call the temperature of the PN junction as the junction temperature.

What is the relationship between the junction temperature and the luminous flux of the LEDs?

"The higher the junction temperature, the lower the luminous flux and the higher the junction temperature, which will lower the operating state of the LED."

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