Henxlco AC 110V - 220V TO DC 12V Regulated Transformer Switch Power Supply Driver Adapter For CCTV camera Security System LED Strip Light (30A) Material:Metal ; Working condition:0~45 20%-90%RH Input:AC110-220V 50/60Hz ; Output Voltage:12V 30A Note: IN-DOOR USE ONLY Connection: L, N: AC power input; -V: DC power output "-" ; +V: DC power output " ; +V / ADJ: Adjust the output voltage+"