Specification: Input voltage: AC220V 50/60Hz Output voltage: AC12V Power: 20-50W Load light: 2 G4 20W Feature: Overload protection Overvoltage protection Short circuit protection LED 20-50W Low-voltage halogen transformer bulb 220V-12V 20-50W Electronic transformer for low-voltage halogen lamps Connection: input cable (red cable) and output wire (white wire)