... Advantages:USA, UK, Europe, Australia Standards available1.Voltage(V)and current(Amp) can be adjusted according to customers' requirements. ... temperature protection.3. High energy efficiency,average efficiency accord with ES&CEC08 standards.4.High reliability,long life,MTBF: ... DC 500V 100MΩ(min) white switching power supply for digital products with 60Hz frequency,output 12w max and UL,FCC,ROHs marks