How to judge the quality of Led Driver?

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How to judge the quality of Led Driver?

From: www.hzleddriver.com 
A few simple ways to identify the quality of an Led power supply:

1. PFC (Power Factor Correction)
        Now some countries will require at least PF>0.7, but not necessarily high PFC is good, but also consider the overall oblique wave (small), ripple (small), interference (low), because some manufacturers deliberately make the PFC very high but ignore the electromagnetic compatibility part.

2. Conversion efficiency
        Conversion efficiency, the value, and the stability of the deviation. For example, in the working voltage range of AC170-250V, you can try to debug it from 170V-250V. The voltage changes from low to high constantly, so that you can see on the power meter whether the fluctuation of "conversion efficiency, PFC" is large to prove its stability.

3. Whether the temperature rise of the power supply is high
        The higher the temperature of the power supply itself, the greater the damage to components, because the temperature is a very important factor affecting the life and safety of the power supply.

4. Periodic aging test
        Continuous electricity aging with lamps and continuous electricity for about a month can also detect whether the attenuation of the lamp bead and lamp shell heat dissipation is good.

5. Detect the instantaneous impact current on the lamp bead when it is turned on

6. Test the stability of the constant current

7. Detect the protection function of the led driver
        Whether there is over-temperature protection, over-voltage protection, over-current protection, or short circuit protection.

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