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Trail Running Head Lamp 100 Lumens OnNight 210

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Model: 8503712

Product Features

Trail Running Head Lamp 100 Lumens OnNight 210 is designed for lighting your way and avoiding obstacles when trail running

Fully geared to trail running with its central strap that keeps it balanced, this featherweight head lamp has a brightness of 100 lumens, with 3 light modes for all your needs throughout the run.

A photo of the Trail Running Head Lamp 100 Lumens OnNight 210 in use

Battery life

10 h of battery life in high mode, 30 h in eco mode: run far, worry-free.


200' vision in high mode (100 lumens), and 100' in eco mode (45 lumens)!

Easy to use

Useful tip for trail: angle the lamp so the light's where you want it!


This lamp is as waterproof as they get (IPX4): it has no fear of rain


Attach the lamp to your head using the 2 super-comfortable straps


Unbelievable lightweight Despite all these features, it weighs only 3.5 oz!


Supplied with an additional removable strap for extra security.

Product Lifestyle Image Gallery

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Trail Running Head Lamp 100 Lumens OnNight 210,deep cyan 

Trail Running Head Lamp 100 Lumens OnNight 210,deep cyan 

Trail Running Head Lamp 100 Lumens OnNight 210,deep cyan 

Trail Running Head Lamp 100 Lumens OnNight 210,deep cyan

Product Customer Reviews

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Trail Running Head Lamp 100 Lumens OnNight 210,deep cyan
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Great for dog walking too

Bought as present for dog walking friend who loves it.

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I've owned and used many headlamps......Petzl, Black Diamond, Princeton Tech but all of them were ''self contained'' units..the batts were housed in the headlamp and it's compact etc ..but the drawback is it's kinda weighty.... this is my first headlamp with separate pwr pack so there's no weight on my forehead...the lamp unit is mounted on a swivel and it allows for almost infinite positioning..whereas most self contained pwr units headlamps only allow you to position up or down. the output lumens is adequate. it is good value for money... Dec 2020..we again wud be on medical mission in Nepal..I'd get a few units for our grp..most places we operate in do not have electricity..

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Dear Tony,

Thank you for your feedback. Yes, the 8503712 - ONNIGHT 210 TRAIL RUNNING HEAD TORCH 100 LUMENS - BLUE has both the power pack that is situated at the back and the light itself that is in front. And so it balances everything so you don't feel the weight concentrated on one side. With a weather classification of IPX4, the headlamp can also withstand any weather conditions.

You may also wish to visit this link

Hope to see you again real soon.

Thank you,
Sports Advisor
Works Well

Bought for partner who went out in the dark last night for a walk, and was chuffed at how useful it was. He walked up the old railway line and said he could see a good 5 to 6 foot circular ahead of him which is very handy in the pitch black of the countryside. He loves it.

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head light

its good but first impression that the battery is seperate on the back and attached with a wire to the front is a bit annoying.

Head Torch

perfect for nighttime mountain biking attaches easily to my helmet

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Kalenji on night 210 trail running head torch 100

It's an amazing product exceeding my expectations bright adjustable and light weight ...a value for money product

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lightweighter and long lasting

this is the second of these torches we have bought. The first recharged via mini USB, this model now uses 3xAAA batteries. Both have pros and cons depending on if you are somewhere that it can be recharged or not! Haven't yet fully challenged the battery life of this one so can't comment on how long it will last, but potentially more useful being able to just carry spare batteries if off grid for more than a week or so.

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Good value

Light weight well focused and good battery life.

A light light

Good, bright, angle adjustable, does what it says on the tin - I mean - box.

Great little light

Excellent little head lamp. I haven't tested the length of use from one set of batteries but the lasted a whole weekend camping with a total of about 5 hrs use at night. Great to have a lower light level and brighter one. I've also found it really helpful when doing DIY and keeping my hands free while working.

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Adjustable headlamp

Took these to Kilimanjaro during my summit hike. Lasted the entire journey at full brightness. I did not notice losing any brightness as the battery went on.

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Decent but moody headlamp

I used it for around 11 months and travelled with it for more than 15000 KMs. Since past few months it hasn't been working properly. Occasionally it works well and sometimes it doesn't. So when I went to claim the warranty for this product, it was working at the showroom but it ditched me a couple of times while it was needed in the dark. Also one thing that mine doesn't work with new batteries of any other make except for Geonate. I tried it a couple of times. So I would recommend going for a more powerful and preferably Micro-Usb charging one from the next time.

Hello Mr Joshi,
                               Thank you for your feedback and sorry for the inconvenience caused.
Please be assured that at Decathlon our endeavour is always to provide our customers with good quality products.
I will get in touch with you personally to resolve this issue
Aparna Kathirvelu, DIR.COM.MP
Excellent light for Ultrarunners

I have now bought three of these. An excellent bit of kit. Used them in races from 50 - 268 miles. Never let me down yet. Nice an bright, I typically use them on the reduced power mode. Has a "flashing" mode . great for an emergency /attracting attention. I like value rather than being brand sensitive. A great bit of kit.

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On night

Used this whilst camoing

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Highly satisfied

This is best & must for trekking

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Additional Product Information



  • 100% Acrylonitrile butadiene styrene

Inner tent

  • 100% Printed circuit board

A perfect ally for your trail runs on any terrain...

In trail running, just staying on your feet is a challenge at every stride, and that's why this head lamp guarantees you visibility with a choice of 3 modes: - A high mode (100 lumens) lights your way 200' in front of you so you can avoid roots and thorns on the paths. - An eco mode (45 lumens), with a 100' range, ideal to save battery life on terrain that's not too tricky. - A flashing mode to indicate your presence. In short, it's one of the essentials for trail running!

Battery life: better too much than not enough

The perfect partner for your short-distance to 12.5-mile trail runs, this head lamp saves you from any unpleasant surprises. With 10 h of battery life in high mode (100 lumens) and 30 h of battery life in eco mode (45 lumens), you can probably do a few more miles before your 3 LR03-AAA batteries (supplied with purchase) run out, don't you think?

Features designed for trail running comfort

Bet you love the little things that make the difference... So do we! The ONNIGHT 100 lumens head lamp features 2 comfortable headband straps, a central one and a side one, which you can adjust to fit your head. On top of being super-convenient and fully geared to trail running, this technology evenly distributes the weight of the lighting module (0.5 oz at the front) AND the battery box (1.9 oz at the back). The cherry on the cake? These headbands are even removable and washable!

A waterproof product, classed ipx4

With a waterproof classification of IPX4, your 100 lumens head lamp can withstand any weather conditions: it was born ready. The concrete proof of that is that it passed the Tropical Shower challenge (for 5 minutes minimum) with flying colors. It even survived getting sprayed by multiple water jets from 360° around. Now that's something! So, are you ready to place your trust in this lamp, and, even more importantly, in yourself?

Lots of little extras

On top of its many qualities, and to crown the whole thing off, this head lamp has an infinite number of potential uses: Hiking, cycling or walking excursions, mountain biking, camping (you can even slip the battery onto the side to make it more comfortable to sleep with), etc. In short, this essential trail running tool does the job - every job - and with relish!

Warranty and after-sales service

Parts for the 100 lumens head lamp are available for up to 2 years after purchase at your local store workshop. What about all the DECATHLON products? They have a 2-year warranty!


Detachable and washable headband. Composition: 70% polyester and 30% natural rubber for optimal comfort. The adjustable strap on the ONNIGHT 210 suits all head sizes, for both children and adults.

Warranty and after-sales service

DECATHLON products are guaranteed 2 years.

Spare parts

DECATHLON parts are available for 2 years after purchase in the workshop at your local store.



Product testing

Tested and approved by both beginner and seasoned trail runners, this 100 lumens head lamp is universally appreciated in the so-called "short distances" trail running sector. Some of the best-loved features: its 2 adjustable and comfortable straps, the swivel that allows you to angle the light beam, its ability to adapt to all kinds of terrain, and last but not least: its competition-standard ultra-waterproofing.

Storage instructions

Remove the batteries when storing for a prolonged period.

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

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Size Guide Visual