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Princeton Tec Eos Headlamp

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Cred: 16
Review by racingaheadar

Good Features
 Bright, many settings, low battery indicator, easy on/off, comfortable strap

Bad Features
 a bit thick at about 1.5" and you need a screwdriver to open the battery door

Recommended Alternatives
 I like wrapping this on my wrist when I go for late in the day running. It's very easy to wear on my wrist and if it gets dark before my run is over I can pop it on my head.
Comment by marks
I had no idea about the screwdriver requirement. Would a knife substitute? If no, that's a 1 star flaw imo.
Comment by racingaheadar
Knife would work, as would a coin. It does have a threaded screw but I could not turn it. You would need tiny strong fingers to turn it, making a tool of some sort necessary to use in the slot provided.
Comment by joeyfz9
By design, you're supposed to use the adjustment clip to tighten/loosen the screw. The clip has a slight curve that fits perfectly in the slot.
Was this useful? Yes | No
Read 2 Reviews | Add a Review
Read 8 Retailer Descriptions
From REI:
The compact and tough Princeton Tec EOS Tactical headlamp delivers stealthy illumination for outdoor enthusiasts.
  • One-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
  • Colored interchangeable lens covers offer illumination for specific nighttime activities
  • Red lens helps preserve night vision while providing bright illumination
  • Green lens increases safety while hunting, making you more visible to other hunters
  • 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 three AAA batteries, included
  • Was this useful? Yes | No
Competitive Products
Image
NameEos HeadlampTikka XPMyo XPMyobelt XPL3 LED Headlamp
BrandPrinceton TecPetzlPetzlPetzlBrunton
Lowest Price27.994063.9566.465
BulbLEDLEDLEDLEDLED
TiltableYesYesNoYesNo
Weight w/ Batteries (g)10595170220170
Weight without (g)N/AN/AN/A75N/A
Power SourceAAA BatteriesAAA BatteriesAA BatteriesAA BatteriesAA Batteries
Power Source LocationFrontFrontBackBelt-MountedBack
Power Source RemovableYesYesYesYesYes
WaterproofWaterproofWater-ResistantWater-ResistantWater-ResistantWater-Resistant
Max Burn Time (hrs)60120170170200
Max Burn Time (LED only) (hrs)60120170170200
Brightness Modes33444
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Add Review
Average Review: 4

Cred: 16
Review by racingaheadar

Good Features
 Bright, many settings, low battery indicator, easy on/off, comfortable strap

Bad Features
 a bit thick at about 1.5" and you need a screwdriver to open the battery door

Recommended Alternatives
 I like wrapping this on my wrist when I go for late in the day running. It's very easy to wear on my wrist and if it gets dark before my run is over I can pop it on my head.
Comment by marks
I had no idea about the screwdriver requirement. Would a knife substitute? If no, that's a 1 star flaw imo.
Comment by racingaheadar
Knife would work, as would a coin. It does have a threaded screw but I could not turn it. You would need tiny strong fingers to turn it, making a tool of some sort necessary to use in the slot provided.
Comment by joeyfz9
By design, you're supposed to use the adjustment clip to tighten/loosen the screw. The clip has a slight curve that fits perfectly in the slot.
Login to add comments.
Was this useful? Yes | No

Cred: 40
Review by fb_1024560213

Good Features
 this is like a small spotlight. i got mine in a 24 hour climbing comp and it made 2 in the morning climbing considerably easier.
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Image
NameEos Headlamp
BrandPrinceton Tec
Lowest Price29.81
BulbLED
TiltableYes
Weight w/ Batteries (g)105
Weight without (g)N/A
Power SourceAAA Batteries
Power Source LocationFront
Power Source RemovableYes
WaterproofWaterproof

From REI:
The compact and tough Princeton Tec EOS Tactical headlamp delivers stealthy illumination for outdoor enthusiasts.
  • One-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
  • Colored interchangeable lens covers offer illumination for specific nighttime activities
  • Red lens helps preserve night vision while providing bright illumination
  • Green lens increases safety while hunting, making you more visible to other hunters
  • 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 three AAA batteries, included
  • Was this useful? Yes | No

From Sun and Ski:
The Princeton Tec Eos 1-watt Led Headlamp features 3 brightness levels and a blinking emergency/signaling flashing mode, the EOS delivers a smooth beam of white light in a shock-resistant waterproof housing.
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From US Outdoor Store:
The combination of a one-watt Maxbright LED and Princeton Tec's proprietary optics offers unprecedented brightness and beam smoothness in an ultralight, 3-AAA platform. The Eos is optimal for both localized needs and spotting at a distance. We recognize that different amounts of light are needed for different conditions and situations- that's why we equipped the Eos with three brightness levels and a blinking emergency/signaling mode. The Eos is ready for adventure with its impact-resistant design.
Features:
  • Power: 25 Lumens
  • Lamp: 1 Maxbright 1 watt LED
  • Burn Time: 60 hrs
  • Batteries: 3 AAA Alkaline
  • Weight: 105 g
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From Mountain Gear:
Optimal for close-up tasks as well as spotting at a distance, the EOS Headlamp from Princeton Tec features an optimized lens that balances a long spotlight with flood light.
Features:
  • The LED bulb can be adjusted to three brightness levels depending on your needs, and also features a blinking emergency/signaling mode
  • True current regulation assures that the brightness level stays constant
  • The self-contained battery system eliminates external wires and cuts down on bulk

Specifications:
  • Weight with batteries: 3.7 ounces
  • Battery type: 3 AAA
  • Average battery life (high output mode): 6.5 hours
  • Average battery life (medium output mode): 12.5 hours
  • Average battery life (low output mode): 60 hours
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From Outdoor Basics:
EOS:The EOS is optimal for both localized needs and spotting at a distance. The combination of a Luxeon 1 watt L.E.D./optimized lens/collimator maximizes the beam by balancing long throw with flood light. The self contained battery system eliminates external wires. The EOS is equipped with (3) brightness levels and a blinking signal mode. Batteries: 3 AAA. Bulb life: 10.000+ hours. Weight: 3.7 oz. with batteries. Waterproof to 1 meter. Burn time: 6.5 hrs (high). 12.5 hrs (med). 60 hrs (low). Power: 25 lumens.
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From Backcountry:
The Princeton Tec EOS Headlamp's high intensity LED delivers massive amounts of light in a small package. Princeton Tec uses a unique side-throwing LED and a circular reflector to throw a powerful, bright beam that's stronger than most incandescent bulbs and consumes only a tiny fraction of the power. 3 AAA's will run the EOS for substantially longer than either halogen or incandescent. A super small profile and negligible weight make the EOS a brilliant choice for weight conscious hikers who still want to get some light on the subject.
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From Outdoor Pros:
View all Princeton Tec products Description Princeton Tec EOS W/GREEN Princeton Eos Headlamp Olive DrabPrinceton Tec EOS W/GREEN Princeton Eos Headlamp Olive Drab Features:• Luxeon/1-watt LED with specially designed optimized lens • Maximizes beam by balancing long throw with flood light • Three brightness levels and a blinking/signaling mode • Waterproof • Burn time: 6-60 hours • Uses three AAA batteries (included) • Weight: 3.7 oz. (105 g) with batteries • olive w/ graphite Details and Features
  • Manufacturer and Model: Princeton Tec EOS W/GREEN
  • Oversize: No
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From Travel Country:
Designed with the user in mind, the Princeton Tec EOS Headlamp is optimal for both localized needs and spotting at a distance. 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 flood light. The 3 AAA battery footprint of the EOS is similar to the Aurora providing a self contained battery system that eliminates external wires. Recognizing that different amounts of light are needed for different conditions and situations, the EOS is equipped with 3 brightness levels and a blinking emergency/signaling mode. Each level provides true current regulation ensuring that the EOS will remain at constant brightness as long as the batteries have sufficient voltage. The use of high grade materials ensures durability and strong resistance of the Princeton Tec EOS Headlamp to water/weather/environment conditions.
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