Hello, I have a 400 watt with a digital ballast and my cord is too short for what I need. I read in a book that your not supose to connect through a extention cord because you will lose power and your light will dim... I read that most standard light system cords are 14 gauge tho so I was wondering if I get a extention cord with 14 or 8 gauge wire if that would be ok since it would be a quality extention cord and not just some dinky one. Or what are your suggestions? Thanks in advance.