The 48 Volt Controller varies the speed of the vehicle"s electric motor and it"s direction within the established safety standards for E-Z-GO Vehicles. This item can be used on used on E-Z-GO 48 Volt Electric 2014 TXT, 2012-2014 Terrain 250, 2011-2012 ST Sport II, 2011-2012 MPT 800/1000, 2012-2014 Express S4 and L4, 2012-2013 Shuttle 4X, and 2012 Cushman Hauler 800/1000 Vehicles.