GE Energy Smart Spiral CFL 10 Watt T3 Spiral 1-Pack

40 replacement. Lasts 5 years (Guaranteed to last 5 years based on rated life at 4 hours consumer use per day at 120V). 2700K. Light Output: 520 lumens. Energy Used: 10 watts. Life: 8000 hours. Contains: 1 bulb (Spiral). $24 in energy savings per bulb (Electricity cost savings based on using the bulb for 8000 hr rated life at 10 cents per kilowatt hour compared to eight 40 watt soft white incandescent bulbs [rated life 1000 hrs]). Reliable starting to 5 degrees F (-15 degrees C). Lamp requires a short warm up period to reach full brightness. Energy star. UL listed. Made in China.