Ushio FRK Lamp - 650 watts / 120 volts 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 T6 halogen bulb, 650W, 120V, Base: GY9.5 2-Pin Prefocus, 3200K, Rated Life (Hr): 200, Luminous Flux (LM): 17500,