Lol I order through Amazon, the only reason, I pay about the same, and if I want to return, NO Questions. OPT7 has no contact phone but they do by email. I had an issue with the Ford Edge LED headlights and they 2 day air'ed my replacements. I was always a little sketchy about returning to them direct. Amazon is like a warm fuzzy blanketMine are left and right, it works fine this way.
(FYI I ordered direct from Opt-7, to avoid any chances of a third party having some fun at my expense.)