Before I put headlight relays on a truck I had I turned on the headlights on high beam and touched a jumper wire from the bat. to the socket wire for the high beams.
The lights got noticeably brighter. That convinced me to install relays.

George

They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum