Sunlite 03055-SU 250T10/HAL/FR 250-watt, Halogen Double Envelope T10 Bulb, Frost

Sunlite Halogen bulbs produce more lumens per-watt (LPW) and have a longer lamp life than standard incandescent lamps. You can lower operation costs by more than 30% by using fewer halogen lamps to produce a greater amount of light. These Double Envelope T10 bulbs can last up to 1.8 years with normal household use of 3 hours a day and display a brighter, whiter light than incandescent bulbs. This Sunlite 250-watt, medium based, Double Envelope T10 bulb offers 4000 lumens of brightness, a frost glass finish and has an average rated life of 2000 hours. Great for portable lamps, ceiling fixtures, track lighting, showcase displays and most common lighting needs.