After reading this whole thread, I have two concerns.
1. Morons will still not see you, no matter how bright your light is. Hell, they don't see me when I am flying two 3 foot by 5 foot American Flags. I am not saying don't use a bright light, I am just saying that you should not assume you are safe just because you have one. Somebody will still find a way to not see you. Use the bright light, but combine it with alert, defensive riding.
2. If the light is really as blindingly bright as the claims, is it a good idea to have oncoming drivers blinded momentarily???? Just food for thought. I have never seen the light so I don't know if this would really be a concern. Just thinking out loud.