Model No:SDH-JW10,15,20,30 Specification:Loading Capacity:1T-3T DC Voltage 12+_1V Net weight:5kg-8kg Usage instruction:Put the jack near the tyre to be replacedvia the accessory,the power supply of cigarette ignitor or storage battery may be connecgted to the jack.Take hold of the control handle and press the switch according to your repuire("UP"means rising,"DOWN"mean falling.)Make sure the jack ...