For all vehicles, can be mounted in vehicle. Fully automatic with charging status indicated by LED. Reverse POlarity and short circuit protection. Voltage: 6 v/12 V, Type: Manual, UL or CSA Continuous Rating: 1 A/1 A, Clamp Rating: 50 A, Master Carton: 4, Master Carton Size: 15.5"x 7"x 5", Master Carton Weight: 4 lbs.