Arri M18 - 1800w HMI with barn doors, ballast & cable

This lamp boasts a Luminous Efficacy of 92 Lumens per Watt (L/W). The Color Rendering Index (Ra) is greater than 90 at 6000K (CCT). The M18 is a lensless, open face lighting fixture that combines the desired light distribution from the optics of a PAR and a Fresnel fixture. The unique ARRIMAX reflector design creates diverging rays to produce a crisp shadow. With a beam angle (HPA) of 20 to 60 degrees and a wide usable field angle, the M18 is designed to be both intense and efficient. When narrower beam angles are desired, ARRI offers the ARRISUN 18. The AS18 uses common ARRI spread lenses and a PAR reflector in combination with spot, medium and flood focus settings. Conversion kits are available to adapt an M18 to the AS18 (as well as an AS18 to a M18). The distinctive power class of the M18 and AS18 has also necessitated the design of a new electronic ballast. ARRI's EB 1200/1800W incorporates CCL (Compensation of Line Losses) and the latest advancements in efficiency to supply proper power for these lamps. ARRI's M18 HMI Lamphead With ALF/DMX Ballast Kit (Multivoltage) is an open-face, lensless, more efficient lamphead built to work with a new power class of lamp--the 1800W SE HMI which has a luminous efficacy of 92 lumens/watt, and a Color Rendering Index (CRI) greater than 90 at 6000K. DMX control and ALF (Active Line Filter) together produce much more efficient power use in an already very efficient lighting fixture. The M18 combines the best aspects of a PAR and a Fresnel, creating diverging rays of light to produce a very crisp shadow. This lamp has a beam angle (HPA) of 20 to 60°, with a wide usable field angle. The lamphead is silver.