The conductors appear to be too thin for a 6V system, quite a bit thinner than the original system; supporting technical data would have been useful. I had great difficulty installing the very "lumpy" front end and too short tails into the head light, and the result was not very satisfying. Customer service was contacted in order to clarify questions about the layout, but no response. That said, the harness was well wrapped, and once installed it is durable and will probably do its job.