... ROHS,CB,GS,PSE,SAA,UL approved 4.over load protection 5.2 years warranty 5V ... manufaturer in China, being in this field for over 10 years. We have successfully exported to Europe ... that we produce completely meet production safety requests. Over 40 products have acquired UL,CB test report, ... 50/60Hz) Environment Requirement Working temp...........0°C~ 40°CStorage temp Range..........-10°C~ +85°CWorking ...