ITEM NO. EH500SPECIFICATION Rated volt:220v/50hzInput power:900wRated lifting weight:250kg(single hook) 500kg(double hook)Lifting speed:8m/min(single hook) 4m/min(double hook)Lifting height:12m(single hook) 6m(double hook)PACKING COLOR BOXQ'TY:2PCS/CARTONMEAS:51.3X39X17.8CMG.W/N.W:36/34KGSQ'TY/20':1000PCS CERT GS/CE/EMC