Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Semi-useful
Review: If you're familiar with the red flashing LED bicycle tailights seen on so many bikes these days, then you'll understand whan I say that this unit is essentially a one-LED version of those lights. Yes, it's visible from a good distance away, but only if you're directly behind it; the lens that focuses the light from the LED concentrates it over perhaps 10 degrees. The base has a magnet it it that will allow it to stand up on the roof of a car, assuming the roof is metal, which is still true for most cars. So as a road flare, it's better than nothing, but still nowhere near as visible as a traditional flare, or just putting on on your car's four-way emergency flashers.So what use it is? It might be useful as a rescue device, for signaling, or locating someone in the woods at night (if they had the presence of mind to bring it along with them). Given the low price, it might be worth experimenting with.
