Added power and versatility is available with the Ranger RX Speed "AS" To Go Kit. Using the Ranger RX Speed "AS" eliminates the need for generators, AC outlets and long extension cables. Complete portable power is paramount when on location, and this kit includes an extra battery for back-up. The Varistar umbrella provides even light distribution due to its central positioning over the reflector and flashtube, and is ideal for in and out of studio use, whether it is industrial, portraits, or groups. Lightweight and easy to set up, the Varistar fits into most Elinchrom carrying bags.