The Dalite DA-Lift 19L Motorized Projector Lift is designed to raise or lower a video projector weighing up to 300 lb. The 3-position control switch (included) is all you need to operate it. The included Plenum cover covers the space taken by the lift's opening in the ceiling. The lift contains a removable tray that is attached to bottom of the frame assembly to allow for ceiling tile attachment.
The motor is an oiled-for-life type with an auto thermal cutoff to prevent burnouts. In addition, the braking system is designed to prevent "coasting". The system also has a preset but adjustable limit switch to automatically stop lift in the "down" position. When you are finished using the projector, and the lift is fully retracted into its casing, a micro switch engages to cut power to the lift's motor.