To be road-legal, I want to put a red LED taillight on my bike, tied into my 12V system. I'd like to use something that is comparable in brightness to an automobile taillight (I consider myself a vehicle). I'm considering something like the model 1284R from www.LED-R-US.com. There's lots of sites that sell LED lights, but I haven't been able to find one that talks about power consumption or brightness ratings. Anyone have any experience with this one or other ones?

Thanks.