Pack Of 20 40 Watt G9 Bi-Pin Halogen Bulb, 40-Watt 120-Volt Clear Halogen G9 Base Ultra bright JD Type, G9 40W Halogen Light Bulbs Base: G9 Bi-Pin Base Dimension: 1.57", 9 mm Millimeters between Pins Works with 110 Volt , 120 Volt and 130 Volt as well , Long Life: 2,500 Hours bulb life Usage: Home, Office, Restaurants, Stores, Schools , Landscape , Shops / Universal bulbs High Brightness & Energy efficient light bulb