The Draper AeroLift 25 110v Video Projector Lift is powered by a strong tubular motor for a simplified and elegant design, which includes a stabilizing arm used for cable management. The built-in flexibility allows for easy adjustment to unusual work place conditions such as slightly out of square or irregularly spaced joists. All components can be adjusted from below. You have the choice to mount the AeroLift 25 Video Projector Lift either flush to bottom pan, or with the Aero Low Profile Mount. This lift supports up to twenty-five pounds and a maximum vertical drop of twenty inches and can also be used to recess other A/V equipment such as speakers, security cameras, videoconferencing cameras or document cameras.