B10 E26 Medium Base Compact Fluorescent Lamp. 7 Watt with 2700K color temperature, 82CRI, 300 lumens. 7 watt compact fluorescent equal to 40 watt incandescent. Not for use in totally enclosed fixtures. For use in dry locations only. Average lamp life 10,000 hours. Dimensions: 1.46 inch diameter x 4.53 inch length.