Installation was difficult, but that's true about all Ram Rebels given that the entire headlight assembly needs to be removed. Didn't need a CANBUS decoder which is great, but I did need some headlight enclosure covers that were a little bit deeper to allow more room for the heatsinks. Also, the adjustment to clock the lights was very important since the high and low beam sockets are oriented differently. Once I got them installed and tested, I was very happy with the amount of light each one produces. The low beams are focused (I have projectors) and don't blind oncoming cars. The high beams are ridiculously bright. We'll see how they hold up.