1.All the parameters are tested based on rated voltage of AC220V, rated load, under environmental temperature 20 degree, and 70% humidity.

2.Accuracy Including specification error, line regulation and load regulation

3.Ripple test use 30cm length electric wire to connect power supply and load, use 0.1u and 47u capacitance at the loading end, use 20MHZ oscilloscope.

4.Line regulation under rated load, test with the input voltage change from low to high.

5.Load Regulation Test from 0% load to 100% load 6 、 Every line can output maximum current, but the total load is not bigger than maximum output power.