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Abel Code: AR-540500
Mfr. Code: 540500
Estimated to Ship – 5-10 Business Days
Special Order Only
This is a special order item. You will be charged upon placing your order, which is non-cancelable and non-returnable.
A steel yoke and disc brakes help this lens-free ARRI M40 HMI Head accommodate heavy accessories and stay put when you tilt it into place. Includes a focus range of 18° to 52° half peak angle. Delivers an even beam spread with crisp shadows.
Key Highlights
  • Accepts 2500W or 4000W bulbs
  • Produces even beam with crisp shadows
  • Beam angles: 18° to 52°
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ARRI M40 HMI Head (L1.37400.B) is a lens-less light fxture that unifies the advantages of Fresnel and PAR fixtures. The unit is open face and thus very bright: around 30 % brighter than an AS40 in spot. Due to its unique, patented MAX Technology reflector, it is also focussable over a range of 18° to 52° Half Peak Angle. The M40 provides a remarkably even beam spread that casts crisp shadows over the whole focus range. The reflector characteristics is optimised for 4,000 W lamps, but can also be used with 2,500 W lamps.

The lamphead is equipped with a CCL module (Compensation of Cable Losses). When operated with the optional ARRI EB 2.5/4 kW High Speed AutoScan Ballast unit with CCL, full power is maintained all the way to the lamp even when very long cables are used. This means uniformly high light output indepent from cable length.

This lamphead features a steel yoke and disc brakes for locking down your light fixture after you tilt it into position. This helps with your heavy accesories. Your ARRISUN 40/25 accessories, such as barndoors and scrim, may fit this lighting fixture.


  • Lens-less MAX Technology: Easy to use
  • Around 30 % brighter than AS 40
  • Compensation for Cable Losses (CCL)
  • Tubular steel yoke
  • (2) disk brakes with steel handles
  • Cross-Cooling allows safe operation at extreme tilt angles
  • Suitable for high frame rate images
  • IP Rating IP23 for good weather resistance in rain

NOTE: Bulb is not included.


Spot @ 18°

16.4' (5.0 meters): 77,500 lux with a beam diameter of 5.2' (1.6 m)

32.8' (10 meters): 19,375 lux with a beam diameter of 10.5' (3.2 m)

49.2' (15 meters): 8,611 lux with a beam diameter of 15.7' (4.8 m)

Medium @ 30°

16.4' (5.0 meters): 25,800 lux with a beam diameter of 8.8' (2.7 m)

32.8' (10 meters): 6,450 lux with a beam diameter of 17.7' (5.4 m)

49.2' (15 meters): 2,867 lux with a beam diameter of 26.2' (8.0 m)

Flood @ 52°

16.4' (5.0 meters): 10,900 lux with a beam diameter of 16' (4.9 m)

32.8' (10 meters): 2,725 lux with a beam diameter of 32.1' (9.8 m)

49.2' (15 meters): 1,211 lux with a beam diameter of 47.9' (14.6 m)


What's in the Box

  • Limited 1-Year Warranty
  • ARRI M40 HMI Head


Key Highlights

  • Accepts 2500W or 4000W bulbs
  • Produces even beam with crisp shadows
  • Beam angles: 18° to 52°
  • Color temperature: 6000K
  • IP23 weather resistant
  • 30% brighter than ARRISUN 40/25
  • 1 1/8" male mount yoke


Lighting Features:
Yoke Mount
2 x Disc brakes
Compensation for Cable Losses (CCL)
Lens-less - MAX Technology
Lamp / Bulb Type:
HMI - with G28 base (accepts either 2500 W Metal Halide w/SE or 4000 W Metal Halide w/SE)
Beam Angle / Light Spread:
18° - 52°
Color Temperature:
Lens Diameter:
Scrim Accessory Diameter (no lens): 15.8" (400 mm)
Dimming Range:
100% - 50% via optional ARRI Ballast unit


Input Voltage:


26 in
23.5 in
26 in
52.5 lb
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