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 GY8 Bi-Pin Based 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 50-watt, GY8 Bi-Pin, offers 500 lumens of brightness, a clear 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.Features: - 50-Watt, 500 Lumens - 2,000 Hour Average Lamp Life - GY8 base - Clear glass, UV protected - Q50/CL/GY8/120V General Characteristics BulbBi-Pin Lamp TypeSingle Ended T3.5 Lamp Life Hours2,000 Hours Bulb FinishClear Base2-Pin All Glass (GY8) Lumens Per Watt (LPW)10.00 Life (based on 3hr/day) 1.8 Years Estimated Energy Cost$6.02 per Year DimmableTrue Electrical Characteristics Watts50 Volts120 Light Characteristics Brightness500 Lumens Color Accuracy (CRI)100 CoatingUV Protected Light AppearanceBright White Color Temperature3200K Product