USHIO 150W 120V R7S-12 double-ended tungsten Halogen Light Bulb - J120V-150W/79mm Short The USHIO Double Ended halogen bulb has a rated life of 1500 hours. The Double Ended bulb provides a bright whiter light than incandescent bulbs. The bulb uses 150W operates at 120V and is 79mm in legnth. These bulbs are great for ceiling fixtures, track lighting, showcase displays and most common residential and commercial lighting needs.BaseR7s Recessed Single ContactBulb TypeHalogen BulbsDiameter (in) 0.31FilamentCC-8Lamp FinishClearLuminous Flux (LM)1450Maximum Overall Length (in) 3.16Rated Life (Hours)1500ShapeDouble-EndedVoltage (V)120VWattage (W)150W