Why led lamps need pay attention to heat dissipation? Traditional lamp don’t need that?
- CFL，lighting by heat, and it doesn’t matter if the temperature isn’t hot enough to melt the glass；
- Halogen light is hot, but it doesn’t have any effect on efficiency and life. It doesn’t matter if it’s not hot enough to melt the parts；
- The temperature of the metal halide lamp tube is very high, unless the high power generally does not need to pay too much attention to the heat dissipation.
- LED is a semiconductor device, the high temperature will shorten the life, performance decline, and over, When led chip works, it heats up. We call the PN junction temperature as junction temperature, because its afraid heat so result must do heat dissipation.