My wife runs this on her commuter, at 40 lux it is the equivalent of a 3 watt LED and runs off a generator hub.

The output is more than adequate to see and be seen, the daytime lights are excellent, and it has a high beam cutoff and standlight... the matching rear also has a standlight and voltage sensor that brightens the rear light at stops like a car or motorcycle.

European lights now come in versions that have twice the output and one thing that sets them apart is their high quality lenses and high beam cutoff that keeps you from blinding other road users.

I would like to take all these tactical flashlights and shove them where the sun doesn't shine and North American Cyclists shoulds be pushing for better regulations on bicycle headlights as it might get us a little more credibility and respect.