The company representative (Highdeflighting.com) was helpful in determining the correct lamps to purchase and was very friendly. The package arrived quickly and all components were in good working order as well as easy to understand installation instructions for the do it yourselfer. The performance is great. I plan to upgrade more vehicles and motorcycles in the future. I would not hesitate to use this company. I did buy the Bi-Xenon system 6000k and I have both Hi and Low beams in HID. I know they say is isn't necessary, but I like as much light as I can get. It cost a few bucks more, but I feel it is well worth it. The lights work great.