Sunlite Q75/CL/DC 75W 120V Clear halogen light bulb, Clear, BA15d Double Contact Bayonet Base, 2000Hrs Average Life, 1050 Lumens Sunlite halogen single ended T4 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 75 watt, double contact bayonet based, single ended T4 bulb offers a light output of 1050 lumens, a clear glass finish and has an average rated life of 2,000 hours. Great for portable lamps, ceiling fixtures, track lighting, showcase displays and most common residential and commercial lighting needs. 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. Lamp Life Hours 2,000 Hours Bulb Finish Clear Bulb Type T4 Base Double Contact Bayonet (BA15D) Life (based on 3hr/day) 1.8 Years Estimated Energy Cost $9.17 per Year ELECTRICAL CHARACTERISTICS Watts 75 Volts 120 LIGHT CHARACTERISTICS Brightness 1050 Lumens Color Accuracy (CRI) 100 Light Appearance Bright White Color