This is basically one of DiNotte's front LED 'light engines' but with a red LED, making it by far the brightest light.
However, the deep-set LEDs give little visibility apart from directly behind, and the O-ring mount means the light points down slightly. It comes with a battery magazine to hold four AAs or you can buy a separate rechargeable battery bag (£69), but both mean you'll need to strap another bag to your frame. The whole set-up is heavy (280g) and very expensive too.
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