ARRI 1200/1800W Electronic Ballast with DMX & ALF

The Arri 1200/1800 W Electronic Ballast with DMX ALF is intended for use with the newly designed, more efficient Arri M18 and Arrisun AS18 Fresnel lampheads (not included). This ballast has DMX for precise remote control and ALF (Active Line Filter) which produces much more efficient power use. It features Cable Loss Compensation, which prevents power loss in head-to-ballast cables up to 100' (30 m) long. It has a low-noise switch and a power factor of .98.