3000K. 120 volt. RSC Base. T3. Double-ended halogen light bulbs produce a bright white light making them ideal for task or general purpose lighting, such as work lights, security lights, and torchiere and floor lamps. Life - Lasts 2,000 hours. Brightness - 5,000 lumens. Dimmable. 4.7 inches (118 mm). www.westinghouselighting.com. Made in China.