How To Install Interior Led Lights In Car With Switch. And before connecting the cable by electric path measure the entire cable to be used starting from the toggle switch via battery up to the neon and led car light. Without the resistor the LED will blow out.
If they appear dull not real bright or flicker on off then be sure to check that you have made GOOD earth and POWER connections. Reconnect your car battery. I bought a boat last year in which the prior owner had installed LED tipped toggle switches in VERY BRIGHT blue.
You can do exactly what you are looking to do by running wire such as 12-1-1 from the 12 volt power and then simply wire a toggle switch such as PK34513 with your LED lights such as the Opti-Brite LED Interior Light ILL08COB.
Step 2 - Remove Plastic. Use the light strips with longer length cables in most cases. Reconnect your car battery. When you ignite your engine you should be able to use the control switch to turn your LED lights on and off at will.