UL listed ? safety concerns would matter. AND it is not just if you used UL "recognized" components, the UL listing needs to be on the completed assys. What NEMA spec is the insualtion? Ya know like SJ, SJT, SOWW, etc? What is the ampacity rating of teh conductors, I see metric wire guages, what is it in AWG? This is teh U.S. ya know.