Utilitech 13-Watt (60W) Spiral Candelabra Base Daylight (5000K) CFL Bulbs- (4 Pack) Uses 13 watts for 800 lumens of brightness 8000 life hours Candelabra base, frequently used for table lamps, enclosed fixtures and bare lamp Designed for indoor or enclosed use only Natural Day light gives a cooler shade of white, best used to enhance room's mood