All Switches come standard with fuel level indicators,our switch come in a variety of models for applicationsin either carbureted or injection vehicles.The main function of a switch is to allow vehicle converted to gas fuel supply (LPG OR CNG) to switch from one fuel to another(from petrol to gas or vice versa).The aesthetic look of Switches ensures that they fit optimally into a vehicle’s dashboard. Explicate For electronic injection vehicles 2 position gas/petrol switch with two leds which indicate the type of fuel in use Electronic safety device that interrupts supply to the gas solenoid valves in the event of accidental engine cut-off. Petrol starting, and automatically converting to gas on deceleration. Gas starting in case of emergency Display of the level of gas in the tank by means of 5 leds Second, the main parameters 1 Operating voltage: DC10-15V 2 Operating Current: when does an external solenoid valve, less than 500mA. 3 Drive Current: gas output and oil-state drive power output greater than 5A.