use to power wrinc my 20 foot lund....replace the hand wrinch with the power wrinch...also run a string from power wrinch down to trailer lights this way U can stand anyplace on trailer and operate wrinch....could run from truck battery or buy deepcell battery back of truck and recharge when needed
http://www.promarkoffroad.com/15-000...FYOe4Aodt04AtQ