i have an existing relay that powers 2 55w lights, i just bought 4 Hella 500FF's and wanted to run the existing relay to a pair of hella's and a hella relay to the other pair, all off the same grounded switch.

what would be the best way to do this without running another switch?

 

bump. im kinda in the middle of this and wanna finish tonite.

 

Just run the wire that switches the relays on in parallel with each other.

 

The output wire of your switch can be the 12v+ trigger for both relays, it pulls hardly any amperage being a trigger so you can have both relays from one switch sharing the trigger/signal wire (the 12v+ switched from your toggle switch).

 

thats what i tried, but for some reason when i did my dry run it didnt work.

im gunna go redo it, i had to take it apart and go to work. ill see how it works.

 

worked fine, recheck everything, the reason it didnt work before was for some reason the wires connecting to the bulb on the inside of the light were switched on one light so it threw off the curcuit.