Zitrades 30watt Led Light Strip Power Supply Diver Transformer 12Voltage with a 5.52.1mm Dc Plug By Zitrades Power 30 Watt, Input Voltage 110 -130 Volt Output Voltage 12V DC Width 41 mm or 1-5/8",Length 200 mm or 8"/ Height 26 mm or 1" IP67 waterproof 5.5*2.1mm DC plug make it easy to use