Super Compatibility: GEARZAAR Battery isolator switch 12v serves as a power cut-off Device when a vehicle or boat is not in use, it is widely applied in RV, ATV, car, marine boat, camper, camper, travel trailer, truck, UTV, etc. Minimizie Battery Loss: Used for 12-48V, 100A continuous at DC 12V, Battery disconnect switch can stand alone or be locked together with other switches for minimizing battery loss and preventing electric leakage effectively. Quality Material: CAR RV master switch battery made of High Quality ABS plastic housing, rear cover insulates terminals against any short of circuits Easy Operation: The GEARZAAR Battery Switch with On/Off position in color labels can indicate clearly: Switch ON=Power (green) to the closed circuit, Switch OFF = No power (red) to the cut-off circuit. Plug and Play: easy to install and use, car battery cut off switch take maximum 15 minutes to fisish the installation