The KSPOWER AU plug adaptor transformer is one universal input voltage 100V-240V AC to DC output 18W constant voltage solution, support single output voltage range from 5V-36V for choose and fixed adapter AC plug of AU plug, the ac dc adaptor 18W is certified AS/NZS 62368:1:2018 60950 safety standard and meet energy efficiency MEPS/DOE/CEC level VI.