The RPS Studio Cooled 20 is a versatile LED light that can be used in the studio or on a shoot location even if there is no AC power. Produces light equivalent to a 200 photoflood incandescent, provides 5200-degree daylight. The integrated dimmer and compact size (7.25" x 5.5") makes this a very useful light for location or studio work. Powered by an included AC adapter or 12 AA batteries (alkaline or Ni-MH, not included), this unit lights up a scene whether AC power is available or not. Complete with footed yoke-style bracket, 1/4-20-Female wrench, and locking handle Standard accessory (with 1/4-20-Female wrench) designed for right- or left-handed use.Included with RPS Studio Cooled 20 are a two barn door flag, a tungsten filter, a diffusion filter, a nylon bag to hold both filters, an AC adapter, and a handle. Key Features: Color temperature of 5200°K, light (+/- 200 degrees) 25,000 lumens Power output settings -- cycle through 0-full power with adjustment knob Foam covered handle for a convenient portability Accepts standard umbrella Compatible with standard Softbox (Bowens compatible) Size: 7.25 x 5.5 in. (18.4 x 13.9 cm) Weight: 2.3 Lbs. (1.04kg)