Hello so I am hooking up a LED strip to my car but I am having trouble with the dimmer on the dashboard. To make this very simple and easy what I am trying to achieve is to cut off the power from the LED circuit if the voltage falls under 11V. I was thinking of using a relay and have the power hooked up to the NO and positive side of the relay, therefor if the voltage falls under 11V, the relay would go to the "closed" position and the circuit would get no power, however there are no 11V relay. And I say 11V because I am getting 11.6V, not 12V.
The dimmer varies the voltage between 3-11.6V, and when the voltage falls under 11V, weird stuff happens with the IR controller box, I don't want to explain what happens cause it gets complicated.
So that's my problem/question. I am not easily able to get the a constant 12V supply, I can only tap into the 3-11.6V wire. So using that 1 wire, what simple circuit can I make?