Just a quick question in regards to making my own power cables for LED rope light. I know I have to add a rectifier to eliminate flicker and to ensure it is bright (200v single phase rectifier), but I also have an abundance of 4 core 18gauge alarm cable (non-shielded). My main question is whether or not I can use this cable to create my power cables? Length of led rope light would not be any longer than 50 feet (so around 33.33 watts or .3 amps where I live in North America). Should I double up the conductors as well? Is there a best practice on where to place the rectifier? (close to power source or close to led rope light). Thanks.