Full Spectrum Light Bulb - ALZO 27W Compact Fluorescent - Case of 4 - Daylight Balanced 5500K - Pure White Light

Case of 4 full spectrum light bulbs that imitate daylight, are energy star compliant, and have a long life at circa 10,000 hours with 1300 Lumens output; low energy consumption, good for treating Seasonal Affective Disorder S.A.D., for photo studio lights, or for starting plant growth. These are Compact Fluorescent Light (CFL) bulbs. Fits all medium-base E27/E26 sockets, but this is a large bulb that might create a fit problem with standard lamp harps of household light fixtures; a larger lamp harp is needed, see ALZO 9" harp, ASIN B0035LTIZE. Dimensions: L: 6.5"; W (Diameter): 2 1/4"; Length socket base to top of ballast: 2 3/4"; W (diameter) of socket: 1".