(5-bulbs) 150 Watt 120 Volt DE 150W J Type T3 78mm R7S Clear Halogen Bulbs 150Watt lamps Anyray 3-1/8 '' long (5-bulbs) 150 Watt DE J Type 150W Double Ended R7S T3 78MM Tungsten 150Watt 120V Anyray A1831Y Base: R7S Double Ended / Length : 3-1/8 '" inch long 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 / Universal bulbs High Brightness and Energy efficient light bulb / Dimmable Anyray