ALZO 45W CFL Video-Lux&reg; Photo Light Bulb 5600K - 120V - matches color temperature of Kino Flo & Osram bulbs - daylight balanced pure white light - 2800 Lumens Daylight color temperature of 5600K with CRI of 91; renders colors accurately for photography Matches color temperature of Kino Flo and Osram light bulbs This is a large bulb that might not fit standard household lamps; see diagram above 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.