Set of 5, Halogen JC Type Light Bulb G4 Base 12V 20W Bi-Pin Light Bulb, 5XG4-12V-20W Set of 5, JC Type G4 Halogen Bulb 12V 20W Base: G4 Clear Bi-Pin Base (4 Millimeters between Pins) Dimension: See Picture Long Life: Approx. 2,000 Hours bulb life Versatile Usage: Applicable Home, Office, Restaurants, and Stores High Brightness & Energy efficient light bulb