ALZO 45W CFL Photo Light Bulb 5500K, 2800 Lumens, 120V

Daylight color temperature of 5500K; CRI of 91Renders colors accurately for photographyThis is a large bulb that might not fit standard household lamps; see diagram aboveAbout 8,000 hours bulb lifeFlicker-free45W compact fluorescent photo light bulbs, super bright with 5500K color temperature and 2800 Lumens output, CRI of 91, and 120V. 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 8,000 hours bulb life. Fits all medium-base E27/E26 sockets. Pack of 4. Dimensions: Length: 7 inches; diameter: 3 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. ALZO warranty for all CFL bulbs is 30 days.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 heatSpecificationsFAQALZO Compact Fluorescent Light Bulbs FAQWhat is CRI Color Rendering Index?Lumens and Lux, Definition of Light Measurement

• Daylight color temperature of 5500K produces soft diffuse light; 120V
• This is a large bulb; see dimensions in diagram above; flicker-free
• CRI of 91; brightness of 2800 Lumens at 1m
• Exceptional bulb life of approximately 8,000 hours
• 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 reduced.