New to the forum,lighting and Jeeps.I should get my Hella 500FF driving lights delivered tomorrow. I plan on using a power source from the fuse box for the on/off switch.I got a 10 amp add-a circuit today. Let me see if I can get my thoughts on paper...In my fuse box ('13JK) fuse slots M-9 and M-14 are empty.They are both hot with the key on.Both slots call for a 20 amp fuse. My thinking is...Since the slots are empty I do not have to add a 20 amp fuse to the add-a circuit??!! Just a 10 amp fuse in the top slot of the add-a-circuit and I will be good to go????? If my thinking(?) is wrong which fuse could I piggyback onto and be OK? Thanks

 

HELP!! Gonna start in the morning!!

 

You will be fine with the 10 amp fuse, assuming the power to your switch will be used to throw the relay for the lights.

 

Yes I will be using a relay. Thank you.