Specification: Input voltage:AC220V 50\/60Hz Output voltage:AC12V Wattage:20-50W Load lamp:2pcs G4 20W Size:540*235*235mm Features: Overload protection Over-voltage protection Short-circuit protection 20-50W LED Transformator Treiber Low voltage halogen transformer 220V - 12V 20-50W lamp light Electronic Transformer for low-voltage halogen lamp Connections: wire leads for input(red line) and output(white line) Package Included: 1*LED driver