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 GY6.35 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, GY6.35 Bi-Pin, offers 850 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.Features: - 50-Watt, 950 Lumens - 2,000 Hour Average Lamp Life - GY6.35 base - Frosted glass, UV protected - Q50/FR/GY6.35/12V General Characteristics BulbBi-Pin Lamp TypeSingle Ended T3.5 Lamp Life Hours2,000 Hours Bulb FinishFrost Base2-Pin Glass (GY6.35) Lumens Per Watt (LPW)17.00 Life (based on 3hr/day) 1.8 Years Estimated Energy Cost$6.02 per Year DimmableTrue Electrical Characteristics Watts50 Volts12 Light Characteristics Brightness850 Lumens Color Accuracy (CRI)100 CoatingUV Protected Light AppearanceBright White Color Temperature3200K Product