Construction seems to be good. The light cap is plastic. It was easy to put together and wire due to the molex connectors. The instructions are awful! A series of pictures and the only english is “tighten screw”. There’s a link to the video but again there are no audio instructions so you’re basically watching a video of the assembly process with no instruction. I would have given 3 stars due to lack of proper installation instructions but since the price was reasonable (380 cad after tax) I’ll give it a 4 star.