my good friend bought those off of mustang tuning (370$)....I got mine from ebay (150$)...the boxes they came in are identical...but his have never shaken before like one of mine does. The bulbs can't be replaced by normal ones...that's why I'm looking to possibly modify them using the bulbs that stangmods offers. I don't think the headlights are a bad product on Ebay...I think I just have a super rough ride on my car and something has jarred loose. They've never leaked before, and the bouncing started recently