The function of the Lenco hatch lift system is simple. Since the hatch lift is based around a ballscrew it is able to push or pull a heavy load and remain at a constant position.Lenco hatch lifts are easy to install because they install with a single power cable. They draw an average of five amps of power and deliver over 500 pounds of push for heavy engine covers, decks, large hatches and electric consoles. In case of power failure Lenco hatch lifts are supplied with two clevis pins at the mounting brackets. To pull this pin out while the hatch is closed you must rig it to a point outside of the hatch. To insure easy access under any circumstances, try the Lenco Hatch Lift Slide Bracket (VPN #70381-001; WM #11035722). Comes with 2' leads and Deutsch connectorsApproximate Stroke: 24" Length (Retracted): 37"Length (Extended): 61"24 VoltsPlease note: Hatch lifts do not include a switch. See VPN #15096-001 (WM #11035383).