The Calumet Cf0003 Continuous Light 5500k Daylight Color Temperature Comes with Four Spiral Fluorescent Lamps, 5500K daylight color temperature delivers superior color rendering - ideal for digital photography Four 35W energy-efficient spiral fluorescent lamps (equivalent to a 500W incandescent lamp) Long lamp life of 6,000 hours means less time and money replacing lamps Includes Quattro fluorescent light, four 35W spiral fluorescent lamps and reflector