ALZO 27W CFL Photo Light Bulb 5500K, 1300 Lumens, 120V, Pack of 4

Crisp, bright white light ideal for reading and tasks that require visual accuracy; CFL bulb has natural daylight-balanced color temperature of 5500K; pack of 4The "Joyous Light" bulbs Chase away winter blues, alleviates the effects of Seasonal Affective Disorder S.AD; also good for starting plant growthhis is a large bulb that might not fit standard household lamps, see diagram above; 9-inch ALZO lamp harp will fit this bulb; bulb fits all medium base E27/26 socket; Dimensions: Length: 6.5 inches; Width (Diameter): 2.5 inches; Width (diameter) of base: 1 inch.Generates very little heat, and all ALZO Joyous light bulbs are flicker-free; energy saving, uses about 1/4 of the energy of a comparable Tungsten bulb, and has about 10,000 hours bulb lifeRenders colors accurately for photographyThis is a large bulb that might not fit standard household lamps; see diagram aboveAbout 10,000 hours bulb lifeFlicker-freeSet of four (4) 27W compact fluorescent photo light bulbs, super bright with 5500K color temperature and 1300 Lumens output, and CRI of 91. Their brightness is equal or very close to daylight, which renders colors of objects accurately for photography. This is an energy-saving bulb with about 10,000 hours bulb life. Fits all medium-base E27/E26 sockets. Pack of 4. Dimensions: Length: 6.5 inches; diameter: 2.5 inches; diameter of socket: 1 inch. Important: ALZO CFL bulb life is based on the bulb in an open air upright orientation. When bulbs are installed in fixtures that lack adequate ventilation, the life of the bulb will be reduced. If an ALZO CFL bulb is installed in an overhead recessed light fixture with the bulb glass below the base, the life of the bulb will be greatly reduced.Is a photography light bulb different from a general use bulb?More FeaturesFits all medium base sockets E26/E27Energy saving, uses about 1/4 of the energy of a comparable Tungsten bulbGenerates very little

• 27W CFL photo bulbs with daylight color temperature of 5500K, 120V, CRI of 91; pack of 4
• Brightness of this bulb is equivalent to a 60W incandescent (regular) bulb
• This is a LARGE bulb that might not fit standard household lamps, see diagram above; fits all medium-base E27/E26 sockets
• Dimensions: Length: 6.5 inches; diameter: 2.5 inches; energy-saving bulb with about 10,000 hours life
• Important: ALZO CFL bulb life is based on the bulb in an open air fixture with sufficient ventilation; when ALZO bulbs are installed in fixtures that lack adequate ventilation, the life of the bulb will be greatly reduced.