I am a regular customer and have been buying LEDs lights for my cars from Xtralights. I own a Mercedes 3 series and a Toyota Corolla. I have never experienced any problem from any of the lights but, a few months back I wanted to replace the tail lights of my Mercedes and ordered a pair. When I opened the packaged delivered I found out that one of the lights had a manufacturing defect. It had a dent on its rim and looked broken. I did not wanted to place a faulty light so immediately asked for a replacement. I'm impressed that the light was replaced within ten days and my new light is really fabulous.