Why does the LED chip get burned?
High-power LED lamp beads can continue to operate under most different conditions. However, once the LED lamp bead is corroded, the LED lamp bead is chemically reacted by the surrounding environment, which will reduce the performance of the LED lamp bead.
Factors causing high-power led lamp beads to burn out:
1) The upper and lower filaments are called gold wires in the industry. Pure gold is used for electrical conduction. There are two positive electrodes and two negative electrodes. The real product will have a fifth wire, which is welded to the Zener tube. protective effect
2) When the filament becomes shorter, it will clearly tell you that your lamp has been burned by a large current, which is equivalent to an open circuit
3) The high-power 1W drive current is around 350ma, and the operating voltage is between 3.2-3.6V. Please pay attention when using it. Excessive current will definitely burn the lamp.
4) Usually the aluminum substrates of the three 1W lamps are driven by around 12V, and few of them are directly used at 220V. Do you think there is a lack of a constant current source or a 12V drive power supply?
How to deal with high temperature of high-power LED lamp beads:
1. Increase the volume of the radiator;
2. Use thermal paste to improve heat dissipation efficiency;
3. The power is super large, and there is water circulation for cooling;
4. See the report, there is a fan for forced cooling.
