The luminous principle of LED panel lights
The light-emitting principle of LED panel lights is completely different from that of other lamps. The light-emitting of LED panel lights is produced by the combination of electrons and holes. The following editor will briefly talk about the light-emitting principle of panel lights.
1. Isolation power supply: The performance of this solution is relatively good, the safety and the constant current performance of the IC are better, but the cost is higher.
2. Non-isolated power supply: The cost of this solution is moderate, and the IC constant current is also used, but there will be a safety hazard of breakdown and leakage. Therefore, the external result of the lamp must be an insulator.
3. Resistance-capacitance step-down: This scheme is the least costly, easiest, and least-used non-constant current scheme among the three schemes. Therefore, the cost is relatively low, and it is mainly suitable for the configuration of lamps below 3w. There is also a potential safety hazard of breakdown and leakage, and a better insulating shell is required.
