Bulbrite CF13WW/LM/4PK 13-watt Compact Fluorescent T2 Coil Bulb with Medium E26 Base, Warm White Included in the box: 1- 4 pack of 13 watt Compact Fluorescent T2 Coil bulbs, warm white T2s are ideal for compact spaces ENERGY STAR qualified 13 watts, 82 CRI, 10,000 hour average rated life, Medium (E26) Base Dimensions: Maximum Overall Length 3.90 inches; Bulb Diameter is 1.97 inches