Powered A-Frame Jack with heavy duty 4000 lbs. lift capacity,Exclusive Spring Loaded Drop Leg Pull Pin provides 22" of total travel -14" travel plus 8" drop leg makes access easy, even when a weight distribution system is present,Single-Axis Level makes level deployment easy,Emergency Manual Override allows operation when battery is drained,3 LED Courtesy Lights make hooking up and disconnecting at night easy Illuminates coupler area