Comment I'm out... (Score 1) 86
..as they say on Dragon's Den. Engineer this down to *cloth* and I might be interested. So I can roll it up and stuff it in my backpack. And make it not black when the batteries fail. And make it only slightly more expensive than one of those hi-viz cyclist vests. What? They give those away for free? Could you sell one of these things for $5/£5 and still make a profit?
For a fiver I could wrap my bike and myself in reflective material and not have to worry about batteries.