1:With automatic,manual clutch conversion. 2:Dimension:100mm*90mm*70mm 3:Rated voltage:DC12V 4:Working voltage: 8 VDC-16 VDC 5:Workingcurrent: 20 mA-350 mA -1000 mA 6:Working power:0.24W-4.5W-10W 7:Torque:10-30-40KG.cm 8:Automatic shut-off valve time: 3-8s Electric valveopen time: 3-8sl Insulated resistance: >20M 9:Compression resistance: 600VDC 10:Working Environments:Temperature:-25°C~+85°C 11:Humidity<95%