The Bron HMI F1600W Open Face Kit is a powerful HMI daylight source in a small and light form. The Ballast has a 1200HZ highspeed option and the system is cooled without the use of fans- so its ideal for audio recordings. Continuous light is a special concern for everyone who takes photographs or motion pictures. Broncolor HMI is the solution. These continuous light sources function as an alternative, or a powerful supplement, to natural daylight.There is also an optional softbox adapter for this system.