Ushio JT120V-1000WB 1000W 120V T13 1/4 Halogen bulb with a E39,E40 / Mogul Screw Base - CC Temp / Kelvin: 3050K Halogen light bulbs have a longer life and a higher light output than incandescent bulbs Halogen bulbs have a whiter and brighter light and less blackening, dimmable with most dimmers Applications: interior, interior recessed lighting, track lighting, security lighting Ushio halogen bulb, 1000W, 120V, Base: E39 Mogul Screw, 3050K, Rated Life (Hr): 2000, Luminous Flux (LM): 22000,