Seen plenty of Rayno failure photos including from a dealer in GA which is hot but far from the harshest around. Could be first generation stuff which has been improved or could be 1-2 particular lines. Either way too many red flags for me, but from what I hear Solar Free is having their fair share of failures. I would skip all of these newer cheap companies and go with someone that has a proven track record. SolarFX, Express, Global which are all priced right.