Simulates midday sunlight. 5000K. 4 year (Guaranteed to last 4 years based on rated life at 4 hours consumer use per day at 120V). 13 watt = 60 watt. Light Output: 855 lumens. Energy Used: 13 watts. Life: 6000 hours. Contains: 1 bulb (Spiral). Energy star. $28 in energy savings (Electricity cost savings based on using the bulb for 6,000 hr rated life at 10 cents per kilowatt hour compared to six 60 watt soft white incandescent bulbs [rated life 1000 hrs]). UL listed. Made in China.