Awesome units from Clay Paky! These are the newer Atlas units (Also know as Version 2). These use a custom newer chassis compared with the older Atlas units that use a modified classic Marte and Saturno chassis. Although they look different physically, the output is exactly the same.
These units feature a super bright HMI 575 discharge lamp enclosed in a small douser tube. How the douser works is by rotating the tube to allow light to emit through the small aperture in the rear of the unit. The douser rotates slow or fast depending on the speed chosen and can also can move different directions by utilizing a stepper motor mounted to the douser base. The lamp mounts to a removable plate that transfers the power from the chassis to the lamp. A super high velocity German Papst cooling fan is used for efficient operation. The fan is located on a hinged door that swings open for lamp and fan maintenance.