The US plug power adapter 12W series is one universal input voltage 100V-240V AC to DC output wattage 12W constant voltage solution and fixed adapter AC plug of US plug, JP plug, single output voltage range from 5V-36V DC for option, the plug in power supply is certified UL/cUL 62368 60950, UL Class 2 and J62368 safety standard and meet energy efficiency DOE&CEC level VI.