Ultra-Fab Products 38-944037 Ultra 3502-7 Electric Tongue Jack with 7-Way Plug - 3500 lb. Capacity Perfect for trailers with no on-board battery; The Ultra 3502-7 features over 3,500 pounds of tongue lifting power; Plus, it includes our exclusive Site-Lites night lights to provide powerful after dark illumination This 2" outer tube jack offers an 18" stroke with a 6" diameter footpad to prevent sinking 12 volt operation & 20A circuit breaker 4 foot, 7-way plug Manufacturers 2-Year Warranty