Electric jack is a necessary auto tool. When the cars exchange the tyres, you can lift up the ryre with the Electric jack. It covers for manual Jack''s trouble. Entire course are easy and laborsaving. Voltage DC is 13.5V?V Maximum electric current is 10A Jacking height is 22cm, rising from 12cm to 34cm Net weight of the electric jack is 4.3Kg Rated loading weight is 950Kg