The ARRI M40 HMI Head is a location work horse. Whenever you need to punch light through a silk or bounce light off a reflective surface, an M40 is the ultimate answer. At the design stage, the interaction of lamp, reflector and converter lens was taken into consideration and computer simulated, resulting in unmatched performance. The M40 can be fitted with a 2,500 or 4,000W single-ended HMI lamp, making it a very versatile lighting fixture.
This 120-240 VAC ARRI Electronic 2,500/4,000W Ballast with ALF and DMX is a multi-voltage, dual wattage electronic ballast with Active Line Filter for Power Factor Correction. ALF provides a higher Power Factor resulting in more efficient power use. This is accomplished by shifting the voltage and current waveforms in phase and minimizing harmonics and spikes. ALF also minimizes the current carried back on the neutral leg of the power systems.