Halogen cabinet light. G4 10W/20W 120V/ 12V With transformer. SPT-1 extention wire , 2 pins plug, with UL ,OEM for hompdepot Halogen light Halogen cabinet light. G4 10W/20W 120V/ 12V With transformer. SPT-1 extention wire , 2 pins plug, with UL ,OEM for hompdepot Connect to 120V , SPT-2 extention wire, 2 pins US pinsConnect to 12V with transformer Gold Silver Black White 1- LT 3-LT 5-LT