Pretty nifty, but one might want to verify the legality of rear facing amber lighting in their area.

Also, I noticed it says 250 peak lumens....that would have to be a cumulative total of all the lights together. Looks as though there are 10 total.....that's 25 lumen per light. It would be interesting to see how that compares to one of the half-watt or 1 watt rear blinkies. Reason I mention is because it says visible up to 500 yards. That's 1500 feet. That's less than a third of a mile. The Superflash for example says it is visible up to 1 mile. That's quite a difference. I'm not saying having 10 lights like that in sequence is not going to be very eye catching (an entire row of lights usually is), I'm just trying to make a relative comparison. For $50 (the cost on the website for the flashbak), I could put two Superflashes on my pack and be visible from a further distance (and be proportionately brighter as the distances decrease), use AAA batteries (lighter, cheaper), and have the versatility to use one as a permanent mount on my bike in addition to one that clips on. This thing looks somewhat cumbersome and uses 3 AA's. Plus it says nothing about run time, but I'm guessing with that much total output it's going to drain three AA's much quicker than two AAA's (Superflash can get you 100 hours in flashing mode....and just to be clear I am aware that I am comparing one with one now). And, regardless of the impressive cumulative lumen output, it evidently doesn't show up any further down the road than an individual 25 lumen light. What do you think?