Modern Headlights

slantsixdan said

Good, but the relays themselves don't get the whole job done. There's still the too-thin power and ground wires to the lamps to consider, and headlight sockets available from the parts store have the same pathetic 18ga wire on them. Hence parts kits that contain the relays, the terminals, the plugs, the sockets, the fuses and fuse holders, etc. so you can do it up right.

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Granted.
I mounted my relays at the very front of the left front fender, to reduce the wire lengths to the bulbs and the battery. The relays are a good quality and are way oversized for the current needed. I rebuilt the bulb connectors using a heavier gauge wire (I do not remember the size, off the top of my head). At the very least #14 awg.
I also eliminated a few connections, with home runs to the relays. To eliminate the loss at the connections to the relay sockets, I chose to built it sans sockets and soldered the wires directly to the relays, to also reduce line loss