Heavy Duty Electric Dual and Center Mount Jacks 10,000 lb. Lifting Capacity For Gooseneck Trailers Heavy duty construction Nationwide Service Network Two (2) year limited warranty Shipping weight will be approximately 85 lbs. All components are sealed, leaving unit maintenance free. Eliminates Hydraulics making installation easier. No hydraulic lines to run No hydraulic fluid mess No independent battery source is required Works off 12 volt power source High efficiency motor and gearbox Amp draw is between 3 and 35 amps Quick and easy setup allows for more recreation time Extend and lift time is a little over a minute (about 70 seconds) while retract time is a little less than a minute (about 57 seconds). Easier maintenance than hydraulics The electro-mechanical design has been time-tested for reliability, but in the unlikely event of trouble, Duralegs are easily replaced. Simply unbolt the jack and bolt on a new one - no hydraulic lines to bleed, no messy systems to change and no need for a specially trained hydraulic mechanic.