(Pack of 10) 12-volt 20-watt G4 Base Bi Pin JC Type Low Voltage Halogen Replacement Bulb, Set of 10, JC Type G4 Halogen Bulb 12V 20W Base: G4 Clear Bi-Pin Base (4 Millimeters between Pins) Long Life: Approx. 2,000 Hours bulb life Versatile Usage: Applicable Home, Office, Restaurants and Stores High Brightness & Energy efficient light bulb