OK, My apologize, I understand you want to get into the Lighing business and I don't knock you for it, if fact I encourage it. It is and will be a good way to grow your business and give you some cash flow for the fall season. However, It would be in your best interest if you've never done it before to talk to an electrician or someone who's familuar with installing them. It's good and all to get advise here and by all mean do. But, be sure you have enough support to help you during your difficult time when the breaker box keeps tripping and you find yourself wondering why? This is all but, a simple sinarieo but, unless you know how to trouble shoot you'll find your self chasing your own tail. And if the customer decideds after you completed your job to install there own light to the line that presently supplies power to your line then what? Insurance, I mean enough to cover your own A** if because of you or them putting too much on the line to get it hot has the potential to cause you more trouble than the lights you've put up!Ahhhhh.......What?