800.994.4327 Mon-Fri 7am-5pm PST
Sat-Sun 8am-4pm PST
FREE* same day shipping over $49. Order by 5pm EST
Princeton Tec EOS Bike Headlamp
  • $48.95
Check Availability
Shipping Info
Ask a Question
Product Info
You Might Also Like
  • Video
  • Overview
  • Information
  • Reviews
  • Help

Tec EOS Bike Headlamp

  • 70 lumens
  • 1 MaxBright regulated white LED
  • 4 lighting modes including flash
  • Watertight to 1 meter
  • Up to 121 hour burn time
  • Includes helmet, handle bar and headlamp attachments
  • 3 AAA batteries (included) or Lithium
  • 105g w/ batteries
  • Lifetime manufacturer warranty
  • Shopping Info
    Princeton Tec EOS Bike Headlamp - The EOS BIKE by Princeton Tec takes self-contained battery lighting to the next level. The combination of a Maxbright Rebel LED and a Princeton Tec-designed collimator maximizes the beam by balancing long-throw with localized lighting. The self-contained unit feels virtually weightless on your helmet and makes the ultimate backup light for your 24-hour race. The EOS BIKE is light enough to throw into your jersey pocket for a late afternoon ride ensuring you’ll have enough light to get home. It is drop proof and its use of high-grade materials ensures durability and strong resistance to water/weather/environmental conditions. Includes helmet, handle bar and headlamp attachments.

    Princeton Tec EOS Headlamp:

    Mode Distance Regulated Burn Time Total Burn Time
    High 54m 1 hour 113 hours
    Medium 32m 10 hours 115 hours
    Low 20m 50 hours 121 hours
    Flash 54m 12 hours 100 hours

    Click Here For A Sizing Chart

    I bought the Eos to replace a small Cateye light that I had used as a helmet light until it unexpectedly died on me. I commute by bike and I got over 3,000 miles of solid-on or flashing light from the Cateye, but I expected more. The Eos costs about the same as the Cateye unit and uses the same AAA batteries (I prefer AA for runtime, I'll put up with the weight - this is the only reason I didn't give the Eos 5 stars). However, the Eos' light is *bright* - nearly as bright as my 10-watt halogen main light. The runtime is quite good - I got over a week of commuting from the provided alkaline batteries before switching to rechargables. The light doesn't seem dimmer on the rechargables, unlike some other LED lights. The Cateye required some ingenuity to mount on my helment - the Eos comes with a proper helmet mount in addition to the handlebar mount. It's clear that the light was originally designed to be mounted on a headband, which is fine for me. The battery compartment is secured by a small screw with a knurled edge for grip, and seems reasonably waterproof. I've used it light rain with no problems and I don't expect the eventual downpour will cause any trouble, either.

    J. Hopkins

    Renton, Wa


    I have purchased four of these now. All for different bikes. All of them are fantastic, and more than worth the money

    Steve Perry


    EOS Bike Headlamp by Princeton Tec for Biking

    Write your review

    Need More Information About This Item?

    Contact Us by Phone

    Speak with an expert at 800.994.4327 Mon-Fri 7am-5pm PST.

    Shopping Info