ECO BULB COMPACT FLUORESCENT TWIST BULB Soft white light 6 overall length No flicker 3-way 50/100/150 watt 1200 hour bulb. 500/1200/1680 Lumens - Light Output. 8,000 Hours - Average Life of Bulb. Medium base. Screw in bulb Household use 10-20-28 watt. Carded