IMHO, the weakest link for almost all tail-lights is the mounting system. I absolutely do not understand why manufacturers find this so difficult to address. Nearly all tail-lights are designed to mount to seatposts, which is useless for most cyclists who use a seatbag or racktop bag. This is baffling to me because I would think that commuters and tourers would be among those most likely to buy a really nice, powerful taillight -- and many or most of them would not be able to mount a light to their seatposts. Even if not commuting or touring, many cyclists use saddlebags that block their posts.

Dinotte seems to be the only light manufacturer who has addressed this issue, and they provide a range of different mounting options for their 300-400 series taillights. However, the one mount they seem to be missing is one that would attach to the back of a rear rack, which would be my preferred location for a powerful taillight.