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H31 Headlamp CR123 220Lm
Item Id:ZLH31
H31 Headlamp CR123 220Lm
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Main Features and Specifications

  • LED: Cree XP-G Cool White (color temperature 6100-6500 K)
  • User Selectable Modes: 3 (High, Medium and Low). Each mode can be configured to one of the two sub-levels.
  • Light Output
    • High:         H1 220 Lm (0.9 hrs)   or    H2  120 Lm (2 hrs) / 4Hz Strobe
    • Medium:    M1  43 Lm (12 hrs)    or   M2    24 Lm (23 hrs)
    • Low:         L1      5 Lm (3.7 days) or    L2   0.5 Lm (21 days)
    • Light output are out the front (OTF) values. Runtime tests are done using Panasonic CR123A lithium batteries. Runtimes are usually much shorter with rechargeable RCR123 (16340) batteries, especially with protected 16340s that have higher discharge cut off voltage.
  • Battery: One CR123A lithium primary or RCR123 Li-ion rechargeable. Batteries are not included in the package.
  • Battery Shelf Life: Over 3 years under parasitic drain
  • Beam Type
    • 80 degree spill beam spread
    • 11 degree (3.8 feet at 20 feet) hot spot
  • Dimensions
    • Diameter: 0.90 inch (23 mm)
    • Length:    2.57 inch (65 mm)
  • Weight
    • 0.97 oz (27.6 gram) without battery or headband
  • Features
    • Electronic soft-touch switch, with a 200,000 cycle operating life
    • Smart user interface provides fast and easy access to all brightness levels
    • Precision machined casing from premium grade aluminum bar stock
    • Durable natural hard anodized finish (Type III Class I)
    • Ultra clear lens with anti-reflection coatings on both sides
    • Orange peel textured reflector
    • Battery power can be locked out by slightly unscrewing the tailcap to prevent unwanted activations or parasitic drain
    • Waterproof to IPX7


  • March 2012: all output levels are current regulated



This light has 3 main levels (High, Medium, and Low). Each main level can be configured to one of its two sub-levels. The second sub-level of the High can be further configured to different brightness levels or strobes.

  • Basic Operation
    • Short click turns on the light to High or turns off the light.
    • Long click (press and hold for about 0.6 seconds) turns on the light to Low.
  • Advanced Operation and Configuration 
    • Short click turns on the light to High. Short click again quickly to cycle from High to Medium, and Low.
    • Press and hold to cycle from Low to High, release to set. When press and hold, the light always cycle from Low to High regardless which level you are currently in.
    • Double click to toggle and select between the two sub-levels for that main level. Sub-level selections (except the strobe) for the 3 main levels are memorized after the light is turned off and through battery changes.
    • The second sub-level of the High can be configured after 6 double clicks. Double click (startng with the 7th) to cycle and select different brightness levels or strobes. Short click to turn off the light when finishing configurations. The selections for the second sub-level of the High are memorized after the light is turned off and through battery changes.


Accessories in the package

  • Removable pocket clip
  • One black silicone holder with headband
  • Two o-rings

User Guide

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Customer Reviews Average Rating review
great little headlamp
just as the title says, it's a great, little, durable headlamp. Easy to use, and easy to program once you know how. Only once it turned on inside my pocket but my keys and other stuff caused that. Great output for the size. Good quality headband and haven't had any issues with the clip, seems durable as well. Very happy with my purchase and i would recommend it to everybody
Reviewed by: a user from Belgium. on 3/8/2013
製品の仕上げや性能はとても良いと思います。 旧モデルのH30も仕事用に殆ど毎日使用しています。 H30は度々の落下や雨中使用もしていますが、一度も故障せずとてもヘビーデューティーに働いてくれています。 このH31は家庭用で使っているので、そんなにヘビーな使用方法ではありませんが、 十分に丈夫と感じています。 また、先日古いH50を高所より落として壊してしまいましたが、その修理にも柔軟に対応して頂けました。 物としての所有欲と実用性能、どちらとしてもハイレベルな良い製品だと思います。
Reviewed by: a user from Japan 日本. on 11/15/2011
A superlative LED light: Small with a good balance of lumen output/battery life. Very smooth beam with very little trace of artifacts... Machining and build quality are also very nice. I liked it so much the day after I received mine I bought an SC31 and sold my PT Remix Pro and my PD31 R5. These little lights are that nice. An excellent value-
Reviewed by: a user from Seattle. on 8/19/2011
Best Headlamp Ever!
Absolutely amazing light! Small, bright, light weight, smooth beam pattern, and a beautiful anodized finish! The UI is great! What else can I say.....get one!
Reviewed by: a user from Kelseyville, CA. on 2/14/2011
Perfect Headlamp
Nothing wrong with the interface I say. All you need to do is hold the button a split second when you turn it on and it will remain on low instead of going to high. So, hardly a complaint at all, and I'd say it makes even more sense. If you're in such a rush for light that you can't spare that extra quarter second of button pressing you probably need high anyway. If you have time to think "oh, I just need a little light" then you have time to hold the button slightly.
Reviewed by: a user from Illinois. on 2/11/2011
Great headlamp BUT....
The default short one click ON setting should be Medium, not High. High is a battery drainer and it should be harder to get at.
Reviewed by: a user from Washington State. on 2/4/2011
Nice Head Lamp
Very pleased with purchase! Every day use at job. Most often, using the Mid mode - turn on the two short press. Sometimes needed many light - then one short click to Hi. Rarely, but also using, Min - switch on a long press. I think management is very friendly and correct. So, the light is excellent. Of the requests - would luminous O-ring in front of the glass, rather than on the body.
Reviewed by: a user from Russia, SPb. on 10/24/2010
Please change the User Interface!
I loved the H30, I have use it many times, it is my favorite headlight. I gave mine to a friend and want to order another, but now I see the H31 is replacing it. The H31 looks very good except for one major difference - when the button it touched it comes on in High! For me this seems like a very poor choice - can you please change this? Maybe make it come on at the last level selected, or always in Low?
Reviewed by: a user from California. on 9/21/2010
Very Bright and Compact
The H31 Headlamp CR123 220L is VERY bright.It projects light farther than the old H30-Q5 headlamp but,it produces more of an intense hot spot at close ranges.For close distances(within arm's length),I prefer the older H30 for its wide angle & lack of hot spots.However,the new H31 has many nice improvements over the old design, including:brighter LED, adjustable settings & an upgraded UI;while remaining compact.I'd love to see these new upgrades in the wide-angle version of the headlamp as well.
Reviewed by: a user from Tampa, Fl. on 9/8/2010