1,225 Lumens. 90 Grams. Two Batteries.

The SPORT 1200 ships with two 18500 cells in the box. One is installed in the lamp body, ready to run. The second sits charged in your vest pocket, your pack, your jacket, or the centre console of your car at the trailhead.

When the first cell runs flat, you open the lamp housing (no tools), lift the spent cell out, drop the fresh one in, close. Ten seconds. The spent cell goes back into your pocket and charges in ~90 minutes from any USB-C source — phone charger, power bank, car USB, mid-race aid station.

For groups, clubs, or households running multiple Stormlight lamps, the external 10-cell multi-charger (sold separately) lets you rotate a bank of cells through a single charging session.

Honest answer: it depends on how often you'll be running out of battery in the field. The 500 kr difference between SPORT 700 and SPORT 1200 buys you one extra 18500 cell in the box, and a higher peak output (1,225 vs 725 lm). Same housing, same band, same red LED, same charging.

Pick SPORT 1200 if: you do a lot of long efforts where charging isn't an option, you race or train through Nordic winters with limited daylight, you want twice the peak output for technical descents.

Pick SPORT 700 if: most of your sessions are 1–3 hours, you can charge between outings, 725 lumens covers what you actually need, and you'd rather put the 500 kr toward a spare 18500 cell when (and if) you need one.

Two batteries in the box is the SPORT 1200's whole point. If a charged spare in your pocket is something you'd actually use, the 1200 is the answer.

For training, club nights, and middle-distance courses — yes, with smart power management. The 1200 runs 45 minutes at 100% (1,225 lm), about 90 minutes at 600 lm, and 3 hours at 300 lm per cell. Most club-night courses (1.5–4 km, 27–60 minutes) sit comfortably in this window if you run 300–600 lm as your baseline and pulse to full only on technical legs and control approaches. The second cell in your pocket extends every number with a 10-second swap.

What the 1200 is not built for: competition-grade long-distance orienteering. IOF long-distance winning times sit at 88–92 minutes for elite, and a championship runner needs to push 1,000+ lm sustained without watching the clock. For that, the SPORT 3100 is the right tool — 3,150 real lumens for 90 minutes at full, 145 minutes at fast pace, with an external battery you can keep warm in a vest.

Pick the 1200 for training, club nights, middle-distance, and stafett legs. Pick the 3100 if you race long-distance seriously.

Operating range is −25°C to +60°C. The aluminum heat sink handles cold without issue. Lithium cells lose capacity below roughly −10°C — that's true of every battery on the market — and with the cell on the lamp head, it's exposed to ambient temperature.

This is exactly the situation the second cell solves on the SPORT 1200. The spare lives inside your jacket where body heat keeps it warm. When the running cell starts to weaken in the cold, you swap to the warm one; the cold one goes back in your jacket to recover. The cycle continues — running cell on the head, warm spare in your pocket. For sustained operation in extreme cold, the SPORT 3100 is designed differently: external battery pack on a cable, kept inside your jacket the whole time. Different lamp for a different problem.

The SPORT 1200's headband sits closer to your brow than the PRO 1200's click-release version. The lamp doesn't lift off the band — that's the trade. What you get is a lower profile, less bounce on technical descents, and a centre of mass that stays put during fast movement.

The lamp head itself still has the GoPro-compatible feet, so it mounts on any GoPro accessory — helmet bracket, chest rig, bar mount. What you give up is tool-free release from the band itself. What you gain is a band built specifically to run.

Same hardware platform, same 1,225 lumen output, same six white modes, same red circuit, same batteries, same charging, same multi-charger compatibility. The differences are the headband and the warranty framework. SPORT comes with the fixed low-profile headband (black with yellow Stormlight branding) and a 2-year international consumer warranty. PRO uses the click-release headband with white branding and operates under a separate warranty structure for professional and commercial use.

Pick SPORT for personal sport, recreation, and adventure. Pick PRO if the lamp is a tool you depend on for paid work.

The biggest difference is what the lumen number actually means. Most lamps in this category 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 be marketed at one number while in practice it stabilizes at a much lower output within the first few minutes and runs at that level for most of the rated runtime. We've seen significant drops between the headline figure and what the lamp actually delivers once it's warmed up. Technically FL1-compliant. Practically misleading.

We measure differently. Our 1,225 lumens is the output the lamp delivers at operating temperature — once the LEDs have stabilized and the aluminum heat sink is doing its job — and it's the output we sustain across the rated runtime. Same for every other mode. The number you read on the box is the number that hits the trail.

The other concrete differences:

Aluminum heat sink at the rear. This is what lets the lamp hold its rated output. A polymer front for impact resistance, aluminum at the rear pulling heat away from the LEDs. The lamp is built to deliver the lumens it claims for the duration it claims them.

Two batteries in the box. The SPORT 1200 ships with two 18500 Li-Ion cells — one runs the lamp, one waits in your pocket. Many lamps in this price band use proprietary integrated battery packs that you can't replace and can't carry a spare for. When that pack fails, the lamp is finished. Our cells are user-swappable in 10 seconds.

Repairability. Every part is user-replaceable — the battery, the lens, the switch, the circuit board, the headband. No soldering, no proprietary screws, no service centre. Ten-year part availability on every model we ship.

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 hour three of a long effort, in the rain, when the cell is half-spent.

Material and manufacturing defects under normal use, anywhere in the world. If something fails because of how it was made or what it was made of, we replace or repair it — one form, one conversation, one shipment.

The warranty doesn't cover physical damage from drops, crashes, or impact, or wear on consumable parts like the headband. For those, we offer the Repair Service: every part is replaceable, often for less than the cost of a new lamp.

Read the full warranty →

Email us with what's wrong. We send you the replacement part with simple instructions. Most repairs are user-completable in under five minutes — no tools required for the cells, the headband, or the mount feet.

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, even though the headband itself is fixed.

For mounting on Stormlight's own click-release accessories, our spring-loaded receivers grip the same GoPro-compatible feet and won't release on impact or vibration. Same feet on the lamp, better receivers on the accessories.

Helmet brackets, handlebar adapters, and additional accessories are coming this autumn.

Yes, in carry-on. Each 18500 cell is roughly 2,600 mAh at 3.7V — about 9.6 Wh per cell, 19.2 Wh total for both. Well under the 100 Wh limit for lithium-ion batteries in cabin baggage on every major airline, and under the 20-cell loose-battery limit that some carriers apply. Always pack lithium batteries in your carry-on, never in checked luggage — that's the rule for any lithium battery, not specific to ours.

Worldwide air shipping, 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.