Sterl Lighting Pack of 25 20-Watt 12V JC G4 Base Halogen Lamp 20W Bi-Pin Light Bulbs 20 pack, 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