ALZO 85W CFL Video-Lux&reg; Photo Light Bulb 3200K, 4250 Lumens, 120V, Warm White Light Ideal for Practical Lighting, Matches Color Temperature of Incandescent, Kino Flo and Osram Bulbs 85W photo light bulb with color temperature of 3200K that generates warm white light, 4250 Lumens output at 120V; matches color temperature of incandescent, Kino Flo and Osram light bulbs Ideal for practical and supplemental lighting; this is an energy-saving bulb with about 6,000 hours bulb life This is a large bulb that might not fit standard household lamps, see diagram above; fits all medium-base E27/E26 sockets Dimensions: length is 10.5 inches, diameter is 3.9 inches, length socket base to top of ballast is 4.5 inches 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.