... 12V car.The follow 2 functions be use discerptionFunction 1:AC adapter part :Operation at input AC 100V to 260V 1.5A 47-63HZ,output DC ... 12,15,16,18,19,20,22,24V 100watt max, with Overload protection ,Over voltage ... warmly welcome.** Design the packaging for free! Power Adapter 100w 12v-24v ac/dc adapter (LD-100W 2 In 1)