eagle777 wrote:
are these controllers only used with electric brakes. asking as a lot of boat trailers have surge brakes.
Yes, electric and electric over hydraulic (disc brakes). Surge has no electrical connection to the TV.
I use a Jordan 2020 which has a cable attached to the brake pedal and provides true proportional braking. It is another controller which was bought out and never returned.
I think a replacement for the Brake Smart is called Max Brake.
I don't think you can go wrong with the P3, they are very popular.