1. First let me say that I was very skeptical about buying these lights as I read several reviews about the poor quality of the mounting spring.2. Headlights received and installation started. The first of 6 was a cake. 2nd, but my pen has weakened. The problem is that the spring was slightly bent out of its mount and popped out when trying to apply pressure to pry back the mounting clips. OH NO, my worst nightmare has come true. Did I angrily hit the kitchen? no Did I Use Zip Ties To Fix My $50 Lights? no What have I done you ask? I used my patience and common sense and installed the spring correctly by mirroring the spring on the other side. It lasted about 5 seconds. No glue, no ties, no ruined day. As solid as possible.3. I proceeded with my project and lamps three through six were fine. Overview: High quality light High quality housing Best price on the market A+