Atwood's 2,500 Short Power Jack. Atwood Power Jacks make hooking up a trailer hassle-free. The patented design and convenience of push button operation take the physical exertion out of cranking a trailer up or down. Simply push the button to quickly and effortlessly raise or lower the trailer into position with complete control. The Short Power Jack has a courtesy light to ease your hooking and unhooking in the dark and a manual override with handle that is accessible without removing the cover. Atwood jacks are carefully designed to provide years of trouble-free use. They require little maintenance and use a rugged 12VDC electric gear motor that has been proven in years of use under adverse conditions.