Electric Pocket Bikes: Princeton Tec Eos Bike Light Review

LED headlights are getting better all the time. This little guy is a one Watt Luxeon LED with very good power regulation. Regulation means that the light gets the most from a set of batteries and keeps the light at a given brightness instead of dimming as the batteries weaken. The Princeton Tec EOS has three brightness settings and a flash mode. I actually find the flash mode to be too slow to be useful on the bike and it flashes at full power but these are minor nits. I'd also prefer if the light used AA instead of AAA cells. So I guess there are two things I don't like about this light.

But the positives far outweigh the negatives. The light is small and is supposed to be waterproof to one meter. (I don't ride under water so I haven't tested that feature!) It's easy to operate and the batteries are easy to change. The light pattern seems to be just right for my riding. I use this light on my helmet but it also comes with a handlebar mount. I run the light at the lowest power setting most of the time and that's fine for reading my bike computer or cue sheets. The middle setting is better for general riding, spotting road signs and potholes and things like that. At the highest setting, you get the brightest beam but of course that eats through the batteries quicker.

I'm pretty sure the circuit in this light was designed by Willie Hunt, a real guru in bike lighting circles. And yes, I'm enough of a nerd that I actually keep track of things like that. Anyhow, the Princeton Tec EOS is my latest favorite bike toy.

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Product Description:
EOS BIKE LIGHT.The award winning Princeton Tec EOS Bike light takes self contained battery lighting to the next level! The combination of a Luxeon 1 watt L.E.D.and the Princeton Tec designed optimized lens collimator maximizes the beam by balancing long throw with localized lighting.