This R30 reflector flood is ideal for recessed and track lighting fixtures. It will provide diffused, soft, white light, generate less heat than will an incandescent R30 reflector. Two lamps are packaged in each box. Light Output: 645 lumens Dimensions: 5.4 inches long, 3.7 inches wide Color Rendering: 82 CRI Color Temperature: 2700 degrees Kelvin Rated Lifetime: 8,000 hours Minimum Start Temperature: -20 degrees Fahrenheit (-29 deg. C.) Maximum Operating Temperature: 160 degrees Fahrenheit (71 deg. C.) Electrical Specifications: 120 volts AC, 60 Hz, 12 watts Origin: China Note: This compact fluorescent light may have reduced rated life in enclosed fixtures, or in poorly ventilated fixtures. It should not be used outdoors where it would be exposed to the elements or on dimming circuits. Use only with photocells, motion detectors, and electronic timers that are suitable for use with compact fluorescent light bulbs. This lamp contains mercury. Please recycle at the end of its life.