USHIO JPD120V-420WG/420w 120v Halogen Lamp This Ushio brand halogen bulb has a R7s Recessed Single Contact base with a CC-8 filament. The USHIO Double Ended halogen bulb has a rated life of 75 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)0.55 FilamentCC-8 Maximum Overall Length2.95 Rated Life (Hours)75 ShapeT5 Voltage (V)120V Wattage (W)420W