Oxford Light OL99935 (10 Pack) G4 12V JC Type, 20W, Halogen Light Bulb, Clear Bi-pin Base Halogen Lamp 10-Pack Long Life Set of 10, jc type G4 Halogen Light Bulb 12V 20W Versatile Usage: Applicable Home, Office, Restaurants and Stores G4 base Base: G4 clear bi-pin base (4 millimeters between pins) Crisp Warm Color Color Temperature: 3000k Halogen Lamp Long life: approx. 2,000 hours bulb life