作為ARRI M系列的一員，M40這套無透鏡系統整合了菲涅耳和筒燈的長處。無透鏡的設計增加了亮度：在點光模式下比AS40亮30%左右。由于其采用了獨特的專利MAX技術反光碗，它的對焦范圍為18 到 52°半峰值角。M40可以帶來非常均勻的光線分布，并在全焦段范圍內投射出清晰的陰影。反光碗針對4000W燈泡優化，但同樣可以用于2500W的燈泡。
燈頭裝備了線纜損耗補償（CCL）模塊。在與ARRI EB 2.5/4 kW 高速自動掃描CCL鎮流器搭配使用時，即便在使用較長線纜的時候，燈泡也可以獲得全部額定功率。這意味著光強輸出與線纜長度再無關聯。
As a member of arri M series, M40 lens less system integrates the advantages of Fresnel and downlight. The lensless design increases the brightness: about 30% brighter than AS40 in spot light mode. Due to its unique patented Max technology reflective bowl, its focus range is 18 to 52 ° half peak angle. M40 can bring very uniform light distribution and cast clear shadows in the full focal range. The reflective bowl is optimized for 4000W bulbs, but can also be used for 2500W bulbs.
The lamp cap is equipped with cable loss compensation (CCL) module. When used with arri EB 2.5/4 kW high-speed automatic scanning CCL ballast, the bulb can obtain full rated power even when using a long cable. This means that the light intensity output is no longer related to the cable length.
