Led headlights conversion harness

I just purchased led headlights and conversion wiring harness. My battery is on the driver's side. The videos I have been able to find shows the battery being on the passenger side. Do I hook up the harness to the way so the positive wires connect to the battery and plug lights to that side. Or does it ma

 

You need to correctly wire the harness according to its manufacture's installation instructions regardless of the battery location. Positive lead to positive battery post, etc... Don't assume that the battery posts/terminals are the same orientation as the videos you're watching. As far as what happens after that- I don't know what kit you're using, but I can't imagine that they really have a "left vs right" selector as both head lights should be on or off together.. so if you're concerned that what you're thinking is supposed to be the drivers side connection is now on the passenger side because of the cable lengths, I don't think that's going to be an issue.

Ultimately, if you have an issue, consider reaching out to the manufacture. Unless it's a fly-by-night or cheap Chinese company, they will probably have some customer service to help you.