REI.com
  • Online: www.REI.com
  • URL for this product:
  • From the U.S. and Canada — Call 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • International — Call 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
Princeton Tec EOS LED Headlamp
bluezoomZoom image

Princeton Tec EOS LED Headlamp

Item # 775558

$44.95

Item qualifies for annual
REI Member Refund (typically 10%)

1.

2. Qty

3.

Product Rating
Share It
Email this to a friend Email this to a friend
Bookmark and share Bookmark and share

Designed for versatility, the Princeton Tec EOS headlamp is optimal for both localized, up-close needs and for spotting at a distance.

  • 1-watt LED bulb operates in high, medium, low and flashing modes to meet your up-close and distance needs
  • Each level provides current regulation ensuring that the EOS will remain at constant brightness as long as the batteries have sufficient voltage
  • In the strongest mode, LED shines an impressive 56m
  • Single strap fits easily over caps and lets you read in comfort in your sleeping bag without a battery pack pressing against the back of your head
  • Single switch atop the headlamp is easily located and operated; pivoting headlamp lets you point the beam where you prefer
  • Waterproof to 1m
  • Operates on 3 AAA batteries, included

Made in USA.

Item 775558

Princeton Tec EOS LED Headlamp Specs

Specification

Description

Bulb typeLED
Bulb detailMaxbright LED
Weight with batteries3.7 ounces
Dimensions2.7 x 2.5 x 1.9 inches
Brightness (lux @ 2 meters)High: 185 / Low: 18.5
Light outputHigh: 50 lumens
Maximum beam distanceHigh: 60 / low: 30 meters
Brightness levels3
Beam typeSpot
Strobes1
Regulated outputYes
Battery life at 70 degreesHigh: 113 / low: 121 hours
Batteries3 AAA
MaterialPlastic
RechargeableNo

Princeton Tec EOS LED Headlamp Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Princeton Tec EOS LED Headlamp
 
3.9

(based on 15 reviews)

80%

of respondents would recommend this to a friend.

Pros

  • Bright (15)
  • Good battery life (10)
  • Durable (9)
  • Adjustable beam (6)
  • Stable (6)

Cons

    Best Uses

    • Hiking (12)
    • Backpacking (11)
    • Car camping (9)
    • Day trip (7)
    • Kayak / canoe / rafting (3)
    • Reviewer Profile:
    • Avid adventurer (9), Casual adventurer (4)

    Reviewed by 15 customers

    Sort by

    Displaying reviews 1-10

    Back to top

    Previous | Next »

    Sep

    1

    2008

    (6 of 6 customers found this review helpful)

     
    5.0

    Best All-a-round LED Headlamp

    By Craig the OC Mountaineer

    from Lake Forest, CA

    About Me Avid Adventurer

    Site Member

    Pros

    • Bright
    • Durable
    • Lightweight
    • Long battery life
    • Waterproof

    Cons

    • No Topstrap

    Best Uses

    • Backpacking
    • Car Camping
    • Day trip
    • Hiking
    • Kayaking

    Comments about Princeton Tec EOS LED Headlamp:

    Before I purchased the Princeton Tec EOS, I compared it to several models that were on the market and the EOS was and is still is one of the lightest and brightes LED headlamps in it's class. I have used the EOS for about two years now and even currently there is no headlamp I think is better for general outdoor use. The things that make it a good headlamp are: the power output is regulated, uses commonly found AAA batteries, easy to use with gloves and most importantly it is one of the few lightweight headlamps on the market that is waterproof. The only thing that would make it better would be if teh EOS had a top strap.

    Bottom Line Yes, I would recommend this to a friend

    (6 of 6 customers found this review helpful)

    Was this review helpful? Yes / No

     - You may also flag this review

    Please let us know what kind of issue this is:

    Jan

    31

    2009

    (3 of 5 customers found this review helpful)

     
    2.0

    works for a while

    By schokakola

    from Berkeley, CA

    About Me Casual Adventurer

    Pros

    • Adjustable Beam
    • Bright
    • Long battery life

    Cons

    • Housing cracks

    Best Uses

    • Car Camping
    • Fishing
    • Hiking
    • Lab work

    Comments about Princeton Tec EOS LED Headlamp:

    I've been using two Petzl Tikka XP and two Princeton Tec EOS for outdoor activities and on the job in a research lab during the past ~3 years. Both of them deliver excellent lighting and battery lifetimes. However, both Princeton cracked at the same spot on the housing after less than one year of use. The metal screw/thread and the plastic housing don't go well together and what looks like a reliable way to seal the housing on the first glance turns out to be a weak spot after a while. First the waterproofness went and now the cracks have to be duct taped so you don't cut your fingers when switching the light. In comparison both Petzls still work fine.

    • Gift:
    • No

    Bottom Line No, I would not recommend this to a friend

    (3 of 5 customers found this review helpful)

    Was this review helpful? Yes / No

     - You may also flag this review

    Please let us know what kind of issue this is:

    Aug

    26

    2008

    (3 of 3 customers found this review helpful)

     
    5.0

    Great Headlamp

    By ritenourc

    from Glendale Az

    About Me Casual/ Recreational

    Site Member

    Pros

    • Bright
    • Durable
    • Long battery life
    • Stable

    Cons

      Best Uses

      • Backpacking
      • Car Camping
      • Day trip
      • Hiking
      • Kayaking

      Comments about Princeton Tec EOS LED Headlamp:

      I bought the EOS headlamp as a replacement for the Quest headlamp and have no complaints. Its very light, has 3 different beams plus a strobe if needed for emergency times and with the LED the batteries seem to last extremely long. I take it everywhere, from day hikes to multi-day kayaking trips.

      Bottom Line Yes, I would recommend this to a friend

      (3 of 3 customers found this review helpful)

      Was this review helpful? Yes / No

       - You may also flag this review

      Please let us know what kind of issue this is:

      Mar

      3

      2009

      (2 of 3 customers found this review helpful)

       
      5.0

      Exceptional

      By LeRoy

      from Flagstaff, AZ

      About Me Casual Adventurer

      Site Member

      Pros

      • Adjustable Beam
      • Bright
      • Durable
      • Lightweight
      • Long battery life
      • Stable

      Cons

        Best Uses

        • Day trip
        • Hiking
        • Night dog walks

        Comments about Princeton Tec EOS LED Headlamp:

        We have many trails that are day and now night accessible with the Princeton Eos. Moreover, I frequently walk our two Samoyeds at night. The light reflects the eyes of our forest denizens and has kept us from many close encounters with skunks. Our way is clearly lit and many fellow hikers have asked the manufacturer's name so they might purchase one. Mine held up for 5 years and recently failed after taking a major blow affecting the switch. Bought another and have no regrets. Great product!

        • Gift:
        • No

        Bottom Line Yes, I would recommend this to a friend

        (2 of 3 customers found this review helpful)

        Was this review helpful? Yes / No

         - You may also flag this review

        Please let us know what kind of issue this is:

        Dec

        23

        2008

        (2 of 2 customers found this review helpful)

         
        4.0

        I love this light

        By daddyjordan

        from Phoenix, AZ

        About Me Casual Adventurer

        Pros

        • Bright
        • Durable
        • Long battery life
        • Stable
        • Water-resistant 5 ft

        Cons

        • Not very wide close up

        Best Uses

        • Adventure Racing
        • Backpacking
        • Car Camping
        • Hiking

        Comments about Princeton Tec EOS LED Headlamp:

        I got this light because of its stronger LED and semi-light weight, but mostly for the water resistance. I do adventure races a few times a year and water is hopefully always involved. I also (personal preference) don't like a strap going over the top of my head, just around it like a headband.

        I have kayaked in some serious swells during a rainstorm on Lake Mead with this light and it never faltered. I have also swam at night with it. Every now and then it would go under the water with me a foot or two with no problems. I have had it for almost two years now and the beam is still bright, centered and goes a good distance. Great for biking at night. I can also use the light underneath my helmet (no over the head strap).

        The platic housing used for adjusting the angle of the light from your forehead is also well made. I bought a different brand light for my wife and the plastic housing cracked after a couple uses.

        I would definitely recommend this lamp to others

        • Gift:
        • No

        Bottom Line Yes, I would recommend this to a friend

        (2 of 2 customers found this review helpful)

        Was this review helpful? Yes / No

         - You may also flag this review

        Please let us know what kind of issue this is:

        Nov

        8

        2008

        (2 of 3 customers found this review helpful)

         
        3.0

        Powerful light, breakable, waterproof

        By So Cal Ultra-light Dude

        from San Diego, CA

        About Me Outdoor Professional

        Pros

        • Adjustable Beam
        • Bright
        • Long battery life

        Cons

        • Breakable
        • Heavy

        Best Uses

        • Backpacking
        • Car Camping
        • Hiking

        Comments about Princeton Tec EOS LED Headlamp:

        If you are looking for a bright light that can also last a long time this is the light for you. However be very careful with it and don’t put it at the bottom of your backpack because if you set your backpack down on a hard surface it could break the plastic and water-resistant ability of the light. I have gone through two of these lights and I love them just don’t be too rough with the headlamp it could crack. Great for rainy weather and seeing far distances.

        Bottom Line Yes, I would recommend this to a friend

        (2 of 3 customers found this review helpful)

        Was this review helpful? Yes / No

         - You may also flag this review

        Please let us know what kind of issue this is:

        Nov

        25

        2009

        (1 of 1 customers found this review helpful)

         
        2.0

        Bright, but not good for trail running.

        By Ards

        from Northern VA

        About Me Avid Adventurer

        Site Member

        Pros

        • Bright
        • Waterproof

        Cons

        • Loose angle adjustment

        Best Uses

        • Backpacking
        • Car Camping
        • Day trip
        • Hiking

        Comments about Princeton Tec EOS LED Headlamp:

        I like to trail run and do adventure races of less than 12 hours. While this light was bright, waterproof, and relatively lightweight, I found the angle adjustment of the lamp to be loose. What I mean is that the hinge is very loose. As soon as I'd start running, the light would hinge down, resulting in a very bright light shining right in my eyes. I hope this description makes sense. I preferred the "click" adjustment of my old Petzl; you would set the angle and it would stay there because it clicked into place. I am returning this light and trying the Petzl Tactikka xp Adapt.

        • Gift:
        • No

        Bottom Line No, I would not recommend this to a friend

        (1 of 1 customers found this review helpful)

        Was this review helpful? Yes / No

         - You may also flag this review

        Please let us know what kind of issue this is:

        Jan

        11

        2010

         
        5.0

        Bright, easy to use

        By FunkyRes

        from Redding, CA

        About Me Avid Adventurer

        Site Member

        Pros

        • Bright
        • Durable
        • Long battery life

        Cons

          Best Uses

          • Cycling
          • Hiking

          Comments about Princeton Tec EOS LED Headlamp:

          I have had this light for about a year. I do not regret the purchase. I primarily use it for looking inside crevices (looking for snakes / lizards) but I also use it for night hikes and on my bicycle to add additional visibility when night riding.

          The head band is very comfortable, and it works well with rechargeable AAA batteries. I do carry charged spares, but if I start with charged batteries, I almost never need to swap them.

          • Gift:
          • No

          Bottom Line Yes, I would recommend this to a friend

          Was this review helpful? Yes / No

           - You may also flag this review

          Please let us know what kind of issue this is:

          Dec

          27

          2009

          (0 of 1 customers found this review helpful)

           
          1.0

          Great for illuminating your feet...

          By Hootie Mcboob

          from Midwest

          About Me Avid Adventurer

          Pros

          • Bright
          • Long battery life

          Cons

            Best Uses

              Comments about Princeton Tec EOS LED Headlamp:

              I'm agreeing with an earlier review. The hinge on this lamp is far too loose, and with no way to tighten it, I end up with my light shining on my feet more often than not. It's a shame that what is seemingly such a small detail could ruin this piece of gear. I'm regretting not going with Petzl.

              • Gift:
              • No

              Bottom Line No, I would not recommend this to a friend

              (0 of 1 customers found this review helpful)

              Was this review helpful? Yes / No

               - You may also flag this review

              Please let us know what kind of issue this is:

              Nov

              18

              2009

               
              5.0

              very bright for the price

              By Crashman

              from Minneapolis, MN

              About Me Avid Adventurer

              Site Member

              Pros

              • Adjustable Beam
              • Bright
              • Warmer color light

              Cons

                Best Uses

                • Backpacking
                • Biking
                • Car Camping
                • Day trip
                • Hiking
                • Kayaking
                • Mountain biking

                Comments about Princeton Tec EOS LED Headlamp:

                I used it on my helmet tonight while biking a pretty technical 10-mile mountain bike trail, and it had enough light to perform very well, even at a fast pace with lots of sharp turns, rocks, logs, etc. The beam is narrower and more sharply-defined than the beam of the Princeton Tec Quad. So even though it is only slightly brighter (on paper) than the Quad (50 lumens vs. 45 lumens) it seems much brighter in practice. The color of the illumination is also warmer than the Quad, so colors of things on the trail look more natural. I used it on the high setting for a little over an hour with NiMH batteries at a temperature of 47F, and it seemed as bright at the end as it did at the beginning. The switch is easier to operate than my older Princeton Tec Aurora.

                • Gift:
                • No

                Bottom Line Yes, I would recommend this to a friend

                Was this review helpful? Yes / No

                 - You may also flag this review

                Please let us know what kind of issue this is:

                Displaying reviews 1-10

                Back to top

                Previous | Next »

                Princeton Tec EOS LED Headlamp Related Items

                Things you might need for this item:

                Other items like this:

                You might also like:

                Join REI and Enjoy the Benefits

                Members are eligible for an annual refund on qualifying purchases. Plus, they enjoy many more benefits. Get a lifetime membership for $20.

                Add an REI membership to my order.

                How are we doing? Give us feedback on this page.

                • Shopping Cart 
                • |
                •  
                • Buy REI Gift Cards
                • REI Gift Cards
                • Fast, easy and one size fits all.
                • Buy now!
                • Join REI today!
                • REI Membership
                • REI member benefits include an annual refund (typically 10% on eligible purchases).
                • Join REI today!
                • Sign up for REI Gearmail®
                • and get 15% off selected items!
                • Store Locator
                • Locate an REI store near you.