we are professional electrice jack tongue jack for RV,thailer ,special car,the lifting power is 1500KG,have the remote controlGo This trailer jack is sold together with a remote controller1.DC 12V,35A operation2.lifting power: 1500KG3.lifting range when full load: 140mmLifting range when zero load: 450mm4.effective control radius: 15m5.can use one single jack or use four jacks together to lift the vehicle6.with wireless remote control, can control four jacks simultaneously7.easy to operate, quick to response8.overload protection9.use on trailers, moveable houses and special vehicles10.dia. of outer tube: φ56mm,  dia. of inner tube: φ50mm,11. measurement: 685 mm x182 mm x175 mm12. appro. Shipping weight: 12KG trailer jack,trailer support,tube jack

electric trailer tongue jack HH-3002