• Ideal for practical and supplemental lighting
• Matches color temperature of incandescent, Kino Flo, and Osram light bulbs
• Color temperature of 3200K; warm white light
• This is a large bulb that might not fit standard household lamps; see diagram above

Set of four (4) 85-watt fluorescent photo light bulbs produce a warm white light with 3200K color temperature and 4250 Lumens output, 120V; ideal for practical lighting. This is an energy-saving bulb with about 6,000 hours bulb life. Fits all medium-base E27/E26 sockets. Dimensions: Length: 10.5 inches; width (diameter): 3.9 inches; length socket base to top of ballast: 4.5 inches; width (diameter) of socket: 1 inch. ALZO CFL bulb life is based on the bulb in an open-air upright orientation. When ALZO 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?

• About 6,000 hours bulb life
• Energy-saving, uses about 1/4 of the energy of a comparable Tungsten bulb
• Fits all medium base sockets E26/E27
• Generates very little heat
• All ALZO Joyous light bulbs are flicker-free

What is CRI Color Rendering Index?
Lumens and Lux, Definition of Light Measurement