The FB-2500 utilizes 10 - 54 watt high output T5 lamps that are switchable for 2, 4, 6, 8, 10 lamp operation. Bulbs can be ordered for tungsten or daylight balance. Fluorescent's give naturally soft even light. The included slide in diffuser provides an even softer light. The FB-2500 is perfect for studio or location work where power hungry incandescents can quickly overload available power. With just a fraction of the heat of incandescents you also avoid cooking your talent or constantly running air conditioning. The included lamps are rated for 10,000 hours for a long life, cost effective solution. The FB-2500 is an excellent replacement for large soft boxes such as Chimera or Photoflex. Fluorescent light are also the preferred method for lighting even backgrounds for chroma keying. Technical Specifications • Model : FB-2500 • Hot light equiv. : 2500W • Size mm : 1203W x 486H x 141D • Voltage : 100-240 VAC, 50/60Hz • Size inches : 47W x 19H x 5.5D • Color temp. : 3000K or 5400K • Weight : 23lbs / 10.5kg • CRI : >88 • Power draw : 550W • Mounting : Horizontal 5/8" or C-Clamp