The Feit Electric 500-watt T3 Halogen Rough Service Light Bulb casts a bright, white glow and shines up to 2,000 hours. This ultra-bright, dimmable bulb is ideal for work lights, pool and spa, and outdoor security lighting. 3000K Warm White light provides a cozy, inviting light. It emits 8500 lumens of light, with up to 4,000 hours of life. This clear quartz bulb features heavy-duty construction to resist vibration. Use Feit Electric BPQ500T3/CL/RS/2/CAN halogen bulbs for bright, reliable light.