Use this easy to install switch to turn your HHO generator on or off manually. We include one in all our hho kits, but you should always hook your system up to turn on and off automatically with the cars' engine for best safety protocol. Use this switch to manually turn your system off if you run out of water or if the kit is not acting properly. 

These are much easier to install than rectangular switches- just use a proper drill bit - run the wires and pop it in place. LED lights when power is on, or you can choose not to hook up the LED at all by not connecting one of the terminals.