The Bron HMI 575/800W Lamphead is containing all the components needed for operation: Ballast Extension cable, Lamphead and Reflector. Add a stand and different light shapers if needed. The System can be used in 800 or 575 W Mode. please specify your wattage as we need to set it up with the right lamp. This system is similar to the Profoto Prodaylights, but the head is built a bit smaller and lighter. Also, you can use teh Bron HMI System in their Para umbrellas, or other light shapers with the Bron Pulso bayonet. Ideal for Filming and Photo. 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.