I recently changed headlights from the '27 stock style to the 682-C style headlights. I never had good headlights with the '27 style lights. So when I installed the new lights. I rewired the system to use relays with 10 ga wire all the way to the lights. Wow! do I ever have good lights now. Can't outrun 'em. The lighting system worked well for a few months...….. until the night before last. Went to take the wife out for dinner and look at the Christmas lights. Pulled the T out of the garage, pulled the light switch out and no lights. Changed cars out and went to dinner. Yesterday I got the T up on the lift (everything is underneath). Maxi fuse still good. Multimeter showed power in, but no power out of either relay with switch on. Without disconnecting anything, I took the bracket loose that holds the relays and turned it slightly to get a better look. I heard a click and the headlights came on. I put it all back together and the lights work properly now. Apparently one of the relays had stuck open. Everything works now, but for how long? With my luck, only until the next time I take it out at night. When I installed the relay system, I bought a cheap Chinese relay wiring harness. When it arrived, I cut one of the supposedly 10 ga wires. It was about 16-18 ga wire with thick insulation to look like 10 ga. So I threw away everything but the relays and built my own harness with real 10 ga wire. So now I figure the relays are really cheap junk, too. I don't want to trust them. The relays have no numbers except to identify the terminals, so I have no idea what they are. I can put an SBC together in my sleep, but when it comes to electrical, I'm not the sharpest crayon in the box. So what relays do I need? What is a good brand of relays? And where to get them? Thanks for any help.