22-09-2023, 08:30 PM
(22-09-2023, 08:11 PM)Grantus Wrote: Single wire (+ve), rely on the mounting to be successfully earthed to the body at the mounting point.
Good in theory, but not usually 100% effective. Best to run a second wire and ground it to a good earth connection on the body somewhere, or the battery.
Mine have two wires, to earth properly, and a relay each, to an ignition live positive switch. (Won’t come on, unless ignition is on, and will be off, if ignition is off).
Unlike driving lights, that legally should only switch on with high beam, fog lights can be wired to be switched on, with just parking lights, or headlights.
Ok , Thanks. two wires can be arranged. does the second wire attach to inside the lamp , then to ground or is it attached where I mount the lamp to the bumper and then to a good earth connection on the body. ? And two relays.
I have a live wire under the dash that is NOT ignition activated, it is constantly live, was going to use this wire with a under dash switch to on and off.
Do you think this would be a problem ?