... C6,C7,C8,C14 optional ac/dc adpater switching power adapter Spec. as following:Input Rated Voltage :100Vac~240VacInput ... :over voltage and current protection for power adapterLeakage Current:<5mADC cable length:1.5 metersOperating Temperature:0°C ... are the profesional factory of swtiching mode power supply, power adapter ,usb charger, laptop adapter, ac/dc adapter, Led driver, dimmable led driver, ...