Touche! Yes, Dinotte makes a nice light. I was going to get my wife a 200L, but she wanted a Princeton Tec Singletrack 2. Go figure! I suppose I could have picked up a Dinotte 600L, but it's a fun project to build my own. I was describing the DIY light to my wife, and she suggested that I go into business producing them. I explained that the market for a 400+ lumen bike light was actually fairly small, and that there were plenty of other players out there already doing this. Still, it would be a nice sideline if I had a complimentary buisness going, like my own bike shop...