USHIO 1000w 120v FGT JP120V-1500WCF R7S base Halogen Bulb This Ushio brand halogen bulb has a R7s Recessed Single Contact base with a C-8 filament. The USHIO Double Ended halogen bulb has a rated life of 400 hours. The Double Ended bulb provides a bright whiter light than incandescent bulbs. These bulbs are great for ceiling fixtures, track lighting, showcase displays and most common residential and commercial lighting needs. BaseR7s Recessed Single Contact Bulb TypeHalogen Bulbs Color Temperature (K)3200K Diameter (in)0.51 FilamentC-8 Lamp FinishFrost Luminous Flux (LM)33600 Maximum Overall Length6.59 Rated Life (Hours)400 Voltage (V)120V Wattage (W)1500W