SUPERNIGHT 12V 3A Power SupplyAC 110-220V to DC 12 Volt 3 Amp 36W Adapter Transformers,Jack 5.5mm X 2.1mm 36 Watt Max power supply with DC Jack : 5.5mm x 2.1mm 12V 3A DC power adapter, special for 5050 3528 LED strip lights Input:100-240V AC 50/60Hz Output: DC 12V/3Amp wall switching charger Short circuit, over current protection, over voltage protection, over temperature protection This 12V transformer can apply products such as: CCTV security camera, IP camera, Wireless security cameras, LED strip lights, keyboard pianos, Chamberlain intercoms, Arduino, router, switch etc