Sunlite CFL Spiral Bulbs are an energy efficient, long life solution to your lighting needs. Using only 23 watts these compact fluorescent bulbs put out as much light as 100 watt incandescent bulbs. Daylight color temperature (5000K) provides ample task lighting for kitchens, reading areas, offices, showrooms, workshops or anywhere you need bright light. 1600 Lumen output. Twist & Lock GU24 base works with a variety of lamps and fixtures. With a 10,000 hour life span these bulbs last up to 8 times longer than traditional bulbs. UL Listed.