3,150 Real Lumens. 62‑Gram Lamp Head.

Yes — and the weight is exactly the point. The 62 grams is the entire electronics package: aluminum housing, four Cree LEDs, four-lens optical system, PCB, and the IP67-rated USB-C port. The reason it's that light is that we moved the heavy part — the battery — off the head and into a separate 190-gram pack you keep in a vest pocket, inside your jacket, or on a hip belt.

For a six-hour search, an all-night track, or a long patrol shift, that means no neck fatigue, no headache at the end of the work, and a lamp that still delivers 3,150 real lumens when you point it down a slope or across a tree line.

Yes — and that's one of the reasons the battery is external. With a 62-gram lamp head on the band or helmet and the 190-gram pack worn on the headband at the back of the head, in a vest pocket, or — with the 1.5 m cable — in a jacket pocket or on a hip belt, weight distribution stays low and centred. There's nothing heavy bouncing on the front of the head over rough terrain or during a sled run.

The click-release on both ends of the command cable means the mounting position can change in seconds without tools. Standard 40 cm cable keeps the pack on the headband; swap to the 1.5 m cable and the pack moves into an inner jacket pocket for deep cold, or onto a hip belt when zero head weight is the priority.

Wide, even flood — not a tunnel-vision spot. The four-lens optical system spreads the 3,150 lumens across roughly a 15°–30° field, with no hot centre and no dead zones at the edges of the field of view.

This is deliberate. For SAR, tracking, and patrol work, you need to read the ground at your boots and the terrain ahead at the same time. A spot beam at 3,150 lumens would be blinding in the centre and useless at the sides. The four-lens approach gives you the full output spread across a beam shape that matches how the eye scans terrain in motion.

Operating range is −25°C to +60°C. The aluminum housing handles cold without issue — the question is the battery.

Lithium cells lose capacity below roughly −10°C, which is true of every battery on the market. The difference with the PRO 3100 is that the battery pack is external. In deep cold you keep the pack inside your jacket, where body heat keeps the cells warm and the lumens where they should be. The standard 40 cm command cable reaches comfortably from inner pocket to lamp head; the 1.5 m extension cable is available separately for layered winter clothing where you want the pack deeper in.

At −8°C, lab testing shows ~84 minutes of full-output runtime — compared to the 1h 30min at room temperature. Moving the battery to an inside pocket eliminates most of the loss. This is the practical reason the lamp head and battery are separate. It's not a design choice for its own sake — it's how a high-output headlamp works honestly in real winter conditions.

PRO 1200 is the close-work workhorse — tunnel and shaft work, fish farm and marine work, electrical panel work, winter construction. The 1,225 lumens covers everything within arm's reach to a few metres out. Battery sits on the head, two cells in the box for a 10-second swap. This is the everyday lamp for trades and field work where the action happens close.

PRO 3100 is the distance-and-cold lamp. 3,150 lumens reaches further than the 1200 can. The external battery on a cable means the pack can live inside a jacket where it stays warm. For SAR ground teams, wildlife tracking, snowmobile patrol, and cold-weather utility work where 1,225 lumens runs out of useful reach.

PRO 9000 is the maximum-output lamp for the work the 3100 can't quite cover: snowmobile patrol at high speed across open terrain, alpine SAR where the search line stretches across a whole hillside, mountain rescue where the descent comes after dark. 9,050 lumens, 115g head and 380g pack, 1.5 m command cable as standard.

If the work is mostly within 10–15 metres, the 1200 is the right tool. If it extends past that into terrain you need to read at distance, the 3100 takes over. If it's a snowmobile sweep across a valley, the 9000 is the lamp.

Same hardware platform, same optics, same battery, same runtime, same click-release headband. The differences are the headband colour, the use-case framing on this page, and the warranty framework. PRO comes with a black headband and white Stormlight branding, and operates under a separate warranty structure designed for professional and commercial use. SPORT comes with yellow Stormlight branding and a 2-year international consumer warranty.

Pick PRO if the lamp is a tool you depend on for paid work — SAR, ettersøk, patrol, utility, infrastructure. Pick SPORT for personal sport, recreation, racing, and adventure.

The biggest difference is what the lumen number actually means. Most flagship headlamps at this price point are rated to ANSI/PLATO FL1 — the headlamp industry's measurement standard. FL1 measures output between 30 seconds and 2 minutes after activation, and defines runtime as the time until output drops to 10% of that initial reading.

That sounds reasonable until you understand what it allows. A high-output LED hasn't yet thermally throttled at the 30-second mark — it's still drawing peak current before the heat catches up. So a lamp can claim 3,500 lumens and a 4-hour runtime, while in practice it delivers 3,500 lumens for the first few minutes, drops to 30–50% within the first half hour, and spends most of the rated runtime delivering a fraction of the headline number. Technically compliant. Practically misleading.

We don't measure that way. Our 3,150 lumens is the output the lamp delivers at operating temperature — once the LEDs have stabilised and thermal management is in steady state — and it's the output we sustain across the rated 1h 30min runtime on full power. Same for every other mode. The number on the box is the number that reaches the work, not a peak you'll see for the first few seconds.

The other concrete differences:

Repairability. Every part is user-replaceable — the cable, the battery pack, the LED, the optics, the headband. No soldering, no proprietary screws, no service centre. Ten-year part availability on every PRO model we ship.

External battery on a clean platform. Click-release on both ends, GoPro-compatible feet, command cable as a separate user-replaceable part. The lamp grows with the kit instead of being locked to one configuration.

You can find lamps with bigger headline numbers for less money. We don't compete on that. We compete on what those numbers actually deliver in your hand at −15°C three hours into a search.

Email us with what's wrong. We send you the replacement part with simple instructions. Most repairs are user-completable in under five minutes — click-release means no tools.

If the failure is something you don't want to handle yourself, you ship the lamp to us and we handle it. No service-centre network, no authorised repair shops. One channel, direct.

Parts are guaranteed available for ten years from the model's launch. More about repair →

Yes. The lamp head has GoPro-compatible feet built in, so any standard GoPro mount — helmet adapter, handlebar mount, chest rig — works out of the box.

For mounting on our own click-release system, we use a four-tab connection (the GoPro standard uses two prongs). Both work. The four-tab keeps holding the day one tab breaks, which is the practical reason we engineered it that way.

Hard hat brackets, helmet adapters, and additional accessories are part of the PRO mount ecosystem.

Yes, in carry-on. The 6,000 mAh / 7.4V pack works out to 44.4 Wh, well under the 100 Wh limit for lithium-ion batteries in cabin baggage on every major airline. Always pack it in your carry-on, never in checked luggage — that's the rule for any lithium battery, not specific to ours.

Worldwide air shipping from Hong Kong, 2–7 days to most destinations. All duties and import taxes are included in the price you see at checkout — nothing extra to pay on delivery.

14-day return window from the day the lamp arrives. If something's wrong or it's not what you expected, ship it back and we refund in full.