WHAT YOU GET - Purchasing comes with a 58W Double Circle Light Bulb with a G10Q-4 4-Pin Base in a Square, 3700 lumens, and measured at 9.25” length and 9.25” width. WARM LIGHTING - Produces 2700k color temperature that makes your ambiance warm and toasty. It is instant-start and flicker-free. LASTS 10x LONGER - Our 2C T6 circline lamp can last 10-13 times longer than similar incandescent lamps. ENERGY EFFICIENT - Our 9 inch circline bulb saves up to 75% in energy costs compared to similar light output incandescent lamps. It has a long life – 10,000 hours average rated life. DISCLAIMER - We stand by our product’s quality. We recommend double-checking the bulb specifications before making a purchase. If you have any questions, feel-free to contact us and we will be glad to help you! Replacement for KICHLER 4029