Here’s how to troubleshoot a dim headlight on an older car.
POWER PROBE: https://amzn.to/3zj8WuQ
Purchase some good wire here: https://amzn.to/32TzSgv
Heres a good wire terminal kit: https://amzn.to/38oS0jh
This is a great wire crimping tool that I use: https://amzn.to/2x5NUQ2