Buy Alzo Joyous Light 27 watt CFL Full Spectrum Photo Light Bulb, 4-Pack

Set of four (4) 27W compact fluorescent light bulbs, very bright at 5500K color temperature with 1300 Lumens output. The Joyous Light bulbs are daylight balanced, i.e., their brightness is equal or very close to daylight, which makes them ideal for treating S.A.D. (Seasonal Affective Disorder) a.k.a. 'Winter Blues.' Customers praise the bulb's brightness that makes reading texts easy on the eyes, renders colors of objects accurately for photography, and helps to improve the mood. They are also great as task light or grow light bulbs.Energy Star compliant, flicker-free, CRI of 91, bulb life up to 10,000 hrs. Fits all medium-base E27/E26 sockets. Dimensions: L: 6.5"; W (Diameter): 2.5"; Length socket base to top of ballast: 3"; W (diameter) of socket: 1". A larger lamp harp might be needed to fit this bulb, see ALZO 9" harp, ASIN B0035LTIZE.

Alzo Joyous Light 27 watt CFL Full Spectrum Photo Light Bulb, 4-Pack Features (64)

Natural daylight FULL SPECTRUM balanced color temperature of 5500K
Mood elevator, ideal for treatment of S.A.D.
This is a large bulb that might not fit standard household lamps - see diagram above
9" lamp harp will fit this bulb, see ASIN B0035LTIZE
Energy Star compliant