... C7,C8,C14 inlet optionalUSB charger , ac/dc adpater switching power adapter Spec. as following:Input Rated Voltage :100Vac~240VacInput Frequency ... 0.3A maxEfficiency :85%(MIN)at Rated VoltageOutput:5V1AOutput power :5WRipple and Noise :<120Mv at full road with ... the profesional factory of swtiching mode power supply, power adapter ,usb charger, laptop adapter, ac/dc adapter, usb charger , Led driver, ...