Kaiser RB 5056 HF Lighting Unit Two light banks on lamp arms of square cross section steel tube lamp arms. Vertical lamp arms have height markings and are tilt/angle adjustable with lock joints. Horizontal lamp arms are continuosly height adjustable. Lights are horizontally adjustable and can be swiveled. Die-cast clamp holders. Cold-light daylight type compact fluorescent lamps for even and soft illumination. High-gloss inside reflectors. High-frequency operating system for immediate ignition and flicker-free operation. Separate control box. Lights are Individually switchable, and continuously dimmable.