WT-250/500250/500Kg Electric Hoist.Input power: 930w                                 single hook            double hookRated lifting weight:   250 Kg                    500 kgLifting speed:             10 m/min                 5 m/minLifting Height:             12 m                       6 m.Certificate information: GS/CE/EMC/ROHS/UL.Logistics information:Package size: 535*470*180 mm (2 pcs)N.W./ G.W.: 34/36Kg (2 pcs)loading quantity: 1200 pcs (20')