Stormlight PRO 3100 headlamp at a fish farm in Øksfjord, Northern Norway, at night

800 m Across Jøkelfjordvannet, Norway · Single exposure · Snow conditions · No edit

PRO · HEADLAMPS

More Light for the Work That Happens Outside.

3,150 real lumens. 62 grams on your head. A full shift and then some.

The professional field lamp for fish farms, line work, snowmobile and ATV runs, search and rescue — everywhere the job is outdoors, the dark is long, and a work light isn't enough.

PRO · HEADLAMPS

Stormlight Pro 3100 Headlamp

£229.00

3,150 real lumens from a lamp head that weighs 62 grams — the lightest in its class. A four-lens optical system throws a wide, even beam that lights a whole pen, a whole pole, or a whole trail at once. The 190-gram battery pack rides on the headband, or drops into a jacket pocket on the cable where body heat keeps the cells delivering in deep cold. 40 hours on eco. Charges while in use, from any USB-C source — including the vehicle.

62 g head· 3,150 lm· 40 h eco· 2× 21700· IP67

✓ 3,150 real lumens — measured at operating temperature, held for 90 minutes
✓ 62-gram lamp head — the lightest in its class, comfortable through a 12-hour shift
✓ Four-lens optics — wide, even beam that covers the whole work area, no hot spot
✓ 190 g pack on the headband or in the pocket — cells stay warm in deep cold
✓ Powerbank + charge while in use — phone, GPS or radio from the pack
✓ Every part user-replaceable in 5 minutes with a T5 Torx — ten-year part availability

Ships worldwide. All duties included. 14-day returns.

Real Lumens

3,150 Lumens. Held for the Rated Runtime.

Measured at operating temperature, after thermal stabilization.

3,150 lumens. 90 minutes. Full power.

Low-battery warning, then a deliberate step-down to eco — never straight to dark.

FIELD-TESTED

Real Conditions. Real Reviews.

Every review here comes from a verified buyer with a delivered lamp. We don't filter by rating, we don't pay for reviews, and we ask everyone the same questions — what operation, what terrain, what power level, what surprised them. The honest version, in their words.

WHY THIS LAMP

What Makes the PRO 3100 Different.

01 — Real lumens, held

3,150 real lumens — held for 90 minutes.

Every Stormlight output figure is measured at operating temperature and held across the rated runtime — not a peak in the first seconds before the heat catches up. The PRO 3100 delivers 3,150 lumens for a full 90 minutes at maximum, without the quiet throttle curves that cut most headlamps to a fraction of the number on the box.

Zero-flicker constant-current driving at every level: no pulsing, no eye fatigue on long operations, and video documentation shot under its light shows no rolling bands.

02 — 62 grams on the head

62 grams. The lightest in its class.

The lamp head is the entire optical and electronic package — four LEDs, four-lens optics, driver board, aluminum housing — and it weighs 62 grams. Over a 12-hour shift, that is the difference between a lamp you forget and a lamp you fight.

The 190-gram battery pack clicks onto the back of the headband for balance, or drops into a jacket pocket on the cable when the cold bites and you want the cells against your body.

03 — Built to read terrain

A beam that covers the whole work area.

A four-lens optical system spreads the output into a wide, even field with no hot spot and no tunnel vision. You see the whole pen, the whole pole top, the whole trail ahead — and the edges of your vision, where things go wrong — without adjusting anything.

Five output levels from 3,150 lumens down to roughly 160 in eco — enough to cover two full night shifts on a single pack.

04 — Charge while you work

Plug in a power bank. Keep going.

A USB-C port on the battery pack. Any phone charger works; a 45 W charger fills the 6,000 mAh pack in about 90 minutes. Plug a power bank in during operation and the lamp runs indefinitely.

The same port charges your phone, GPS or radio from the pack. On a shift that runs long, or an operation that stretches past expected duration, the lamp stops being just a lamp and becomes part of your energy system.

05 — Optics

Four lenses, stepped five degrees apart.

The PRO 3100 uses four separate lenses — 15°, 20°, 25° and 30° — with one LED behind each. Every step is five degrees wider than the one before it, and the four fields are layered on top of one another rather than aimed at separate parts of the work area. The beam widens progressively as it comes back towards you: tight where you need reach, wide where you need to see your hands and your footing. There is no single hotspot to aim, and no dark band where one field ends and the next begins.

On a job this matters more than raw output does. A narrow beam with a bright centre forces you to point your head at whatever you want to see. A stepped field lets you keep your head still and read the whole work area at once.

RUNTIME

Five Levels. One Pack. Two Shifts.

The PRO 3100 covers the full span of a working night — from full output when you need to read a whole site, down to a steady light that runs through a second shift without a charge. Runtimes below are conservative, measured at room temperature on a full pack.

3,150 lm1 h 30 min100%

Full output. Reading a whole cage from the walkway, a whole pole from the ground, a whole slope from the ridge. Ninety minutes held at maximum — the number on the box, for the whole rated runtime.

~2,300 lm~2 h 15 min75%

High-output work. Snowmobile or ATV at working pace, moving between pens in weather, line inspection in the dark.

~1,500 lm~3 h 30 min50%

Active work. The level most of a shift runs at: moving between points, handling gear, checking nets and lines. Still more light than most headlamps deliver at full.

~750 lm6 hours25%

Steady work mode. A full shift of close and mid-range work on one pack — feeding systems, vehicle checks, staging, walking the site.

~160 lm~40 hourseco

Eco / base light. Two shifts on a single pack. Standby on a boat, an overnight observation post, a long rotation where the light goes on and off. Still enough to walk by.

A note on cold weather.

Lithium cells lose capacity in extreme cold. Every headlamp on the market does. What matters is whether the lamp still does the job when the temperature drops.

The PRO 3100 gives you the choice: the battery pack clicks off the headband and rides in an inside jacket pocket on the cable, against your body, where the cells stay warm enough to deliver close to their rated output. Sixty-two grams stays on your head; the cold-sensitive part goes where you're warm.

The battery indicator sits on the pack itself, so you can check remaining charge without taking the lamp off.

Charge while in use. Plug a power bank into the battery pack and the lamp runs indefinitely — for operations, expeditions and rotations that stretch past what a single pack covers.

BUILT FOR THIS

Where the PRO 3100 Earns Its Keep.

Aquaculture

A fish farm in Northern Norway in December: the light is gone by early afternoon and the work carries on across open water, in weather, until the shift ends. The PRO 3100 lights a whole pen from the walkway, keeps a wide beam on nets, ropes and feeding systems without a hot spot on the water, and holds 3,150 lumens when you need to see what a camera can't.

IP67 against spray, rain and immersion. Sixty-two grams on the head over a long shift. Battery in the jacket where it stays warm; charge on the boat between rounds.

Line worker with the Stormlight PRO 3100 on a power line in the dark

Line work & grid maintenance

Reading a whole pole from the ground, a whole span between towers, a substation yard in the dark — and then close work on the hardware with the same lamp. The four-lens beam covers the site; the five levels take you from 3,150 lumens down to steady work light without touching a switch twice.

Click-release moves the lamp to a hard hat in seconds. Zero-flicker driver, so the light is steady on documentation video. Every part replaceable in the field with a T5 Torx.

Snowmobile and ATV operator with the Stormlight PRO 3100

Snowmobile & ATV

Maintenance runs, patrol, reindeer herding, access between sites on four wheels or a sled. A vehicle light stays with the vehicle; the PRO 3100 goes where you go, reads the trail ahead at working pace, and is still on your head when you step off to do the job.

Battery pack in the jacket in deep cold. Charges from the vehicle's USB-C between runs. For sustained high speed and long distance, the PRO 9000 throws three times the light.

Search and rescue team with the Stormlight PRO 3100 at night

Search and rescue & tracking

A search starts when the light goes. Sectors get covered on foot, in whatever weather is on offer, for as long as it takes. The PRO 3100 gives you 3,150 lumens to sweep a slope or a shoreline, a beam wide enough to read disturbed ground and a track at your feet, and a head that is still comfortable in the tenth hour.

When the search settles into a rotation, eco runs 40 hours on the pack — through a second night at a staging point without a charge. The pack doubles as a powerbank for the radio and the GPS.

Also used by: Wildlife wardens, reindeer herders, road and rail maintenance crews, mountain guides, dog handlers, and anyone whose work happens outdoors after dark and needs more than a work light.

THE SYSTEM

One Mounting Standard. Every Model In the Range.

The PRO 3100 shares the same click-release and GoPro-compatible mount as every other PRO model. Accessories you buy for the 3100 fit the 9000, the 1200 and the 700. Mount infrastructure you build once covers the whole fleet.

Stormlight PRO 3100 headband with rear battery mount

Click-release on the headband

Same as every other PRO model. Click the lamp off, onto a helmet mount, onto a bar or chest mount, onto any Stormlight accessory. Seconds, no tools.

Battery pack — on the head or in the pocket

The 190-gram pack clicks onto the rear of the 3100 headband, balancing the lamp head so nothing pulls forward. When the temperature drops, click it off, drop it into an inside pocket on the cable, and let your body keep the cells warm. Same pack, two positions, no tools.

The cable is a separate user-replaceable part. A long cable for routing through layered winter gear is available as an accessory.

Stormlight's four-prong mount

Our own click-release design. Four prongs, deliberate press to release. Built to stay attached through vibration, impact and cold — the failure modes that eventually break cheaper mount systems. Every Stormlight accessory uses the same standard.

GoPro-compatible as well

The lamp head also accepts any standard GoPro mount, so whatever you already own works out of the box.

Charging, three ways

USB-C on the battery pack charges the lamp directly. Any phone charger works. With a 45 W fast charger, the 6,000 mAh pack reaches 100% in about 90 minutes.

The lamp charges while in use: plug a power bank into the pack during operation and it runs indefinitely. And the pack is a powerbank itself — USB-C out to phone, GPS or radio.

Helmet mounts, chest rigs, bar mounts

Available as accessories. Same mounting standard throughout the PRO range, so anything you buy for your PRO 3100 fits every other PRO model you'll ever own.

SPECIFICATIONS

The Numbers.

Output: 3,150 real lumens (measured at operating temperature, held 90 min)
LEDs: 4× Cree LEDs (no red LED on this model)
Optics: Four-angle stepped lens system, 15° / 20° / 25° / 30°
Output levels: 5 — 3,150 / ~2,300 / ~1,500 / ~750 / ~160 lm
Driver: Zero-flicker DC constant-current at every level
Lamp head weight: 62 g
Battery pack weight: 190 g
Full system weight: 302 g
Battery: 2× 21700 Li-Ion, 6,000 mAh, 7.4 V, ~44 Wh (airline carry-on approved)
Battery indicator: On the battery pack
Battery position: Rear of headband (click-release) or pocket on cable
Runtime 3,150 lm: 1 h 30 min
Runtime ~2,300 lm (75%): 2 h 25 min
Runtime ~1,500 lm (50%): 3 h
Runtime ~750 lm (25%): 6 hours
Runtime ~160 lm (eco): ~40 hours
Step-down: 3 flashes at 10%, then ~45 min at ~750 lm (25%)
Charging: USB-C, ~90 min with 45 W fast charger
Powerbank function: Yes — USB-C out to phone, GPS or radio
Charge while in use: Yes
Charge cycles: Minimum 500 full charge cycles
Command cable: 40 cm standard (1.5 m available separately)
Waterproofing: IP67
Operating temperature: −25°C to +60°C
Housing: Aluminum front housing, integrated heat sink
Mount: Stormlight four-prong click-release + GoPro-compatible feet
Headband: Black with white Stormlight text, rear battery mount, click-release
Repairability: Every part user-replaceable, T5 Torx, ~5 minutes
Part availability: 10 years
Warranty: 2-year international
Origin: 70°N — invented & tested in Northern Norway

THE PRO RANGE

Which PRO Is Right for the Job?

Four lamps, one mounting standard, one repair system. The 700 and 1200 are integrated-cell service lamps. The 3100 and 9000 are external-battery field lamps. The 3100 is the one for outdoor work that needs real light for a full shift.

	PRO 700	PRO 1200	PRO 3100This lamp	PRO 9000
Real lumens	710	1,235	3,150	9,050
Weight on head	90 g incl. battery	90 g incl. battery	62 g head	115 g head
Battery	1× 18500, integrated	2× 18500, hot-swap	External 2× 21700 pack	External 4× 21700 pack
Runtime at full	75 min	40 min (20 min per cell)	1 h 30 min	~1 h (active use)
Runtime at eco	~120 h @ 5 lm	~240 h @ 5 lm	~40 h @ ~160 lm	~25 h @ ~450 lm
Red LED	Yes	Yes	No	No
Battery position	In head	In head	Rear of headband or pocket	Vest / pocket, 1.5 m cable
Powerbank / charge in use	Charge in use	Charge in use	Yes	Yes
Built for	Electricians, HVAC, fleet	Line work, tunnel, aquaculture	Aquaculture, line work, snowmobile, SAR	Snowmobile, ATV, SAR, ski touring

WHAT YOU GET

Everything You Need. Nothing You Don't.

PRO 3100 lamp head
2-cell battery pack (2× 21700, 6,000 mAh)
Lamp-to-battery cable
Black 3100 headband with rear battery mount and click-release
Quick-start guide

A note on the charging cable:

You won't find a USB-C charging cable in the box. We've chosen to leave it out since most of us already own several. Producing and shipping another one when yours works perfectly well is the kind of small decision that adds up. Every cable we don't make is one less in the world's drawers.

It's a small thing, but we think it matters.

BUILT TO LAST

The Best Repair Is the One You Never Need. But When You Do —

Easy repairs. Five minutes. One T5 Torx.

Every part of the PRO 3100 is user-replaceable — the battery pack, the cable, the lens, the switch, the driver board, the housings, the headband. No soldering. No proprietary screws. No trips to a service center. We send the part directly to you, with instructions. Ten-year part availability on every PRO model we ship.

Break a lens on a job site. Order the part. Fit it at the kitchen table. Back to work tomorrow. That's the design brief.

Learn about our repair service →

70°N — invented & tested in Northern Norway

Designed in Burfjord, above the Arctic Circle, where the polar night lasts for months and a headlamp is a tool, not an accessory. Manufactured at our co-owned facility in Shenzhen to the standard that origin demands. Shipped worldwide with all duties included. Returns accepted from anywhere — one conversation, one shipment.

Read our shipping & support policies →

QUESTIONS

Before You Buy.

The questions we get most often — answered straight, no marketing language.

What does "real lumens" mean on this spec sheet?

It means the number is measured after the LEDs have reached operating temperature and the cooling is in steady state — not in the first seconds after switch-on, before the heat catches up. And it means the number is held across the rated runtime at full power, not a peak that fades in the first minutes.

For the PRO 3100: 3,150 lumens, 90 minutes. When the pack runs low the lamp warns you and steps down to eco rather than going dark. You always know where you stand.

Why is the battery separate from the lamp head?

Two reasons. Weight: 62 grams on the forehead is something you forget about over a 12-hour shift; 250 grams is not. Cold: lithium cells lose capacity below roughly −10°C, and every battery on the market does. With the pack on a cable you can move it into an inside pocket where your body heat keeps the cells delivering close to rated output.

On the headband, the pack clicks onto the rear mount and balances the lamp head. In the pocket, it rides on the cable. Same pack, two positions, no tools.

What does the beam pattern actually look like — flood or spot?

Wide, even flood — not a tunnel-vision spot. Four lenses at 15°, 20°, 25° and 30° are layered into one field that widens progressively as it comes back towards you, with no hot centre and no dead zones at the edges of your peripheral vision.

This is deliberate. On a walkway, on a pole, on a trail: you need to see what is at the edges of your vision, not only what is directly ahead. A spot beam would be blinding in the centre and useless to the sides.

Will it flicker on video?

No. The PRO 3100 uses a DC constant-current driver at every level, not pulse-width modulation. There is no strobe, no rolling bands and no banding in footage — which matters for documentation video on site, body cameras and inspection footage. It is also easier on the eyes over a long night.

How does it actually perform in the cold?

Operating range is −25°C to +60°C. The aluminum housing handles cold without issue — the question is the battery, and the answer is the pocket. In deep cold, click the pack off the headband, drop it into an inside pocket on the cable, and you get the rated output instead of a derated number you didn't expect.

This is how a high-output headlamp works honestly in real winter conditions. We built the system around it instead of pretending otherwise.

What's the difference between PRO 3100 and SPORT 3100?

Same lamp head, same optics, same battery pack, same runtime — and the same 2-year international warranty. The difference is the channel: PRO is sold with fleet pricing, dealer support and a professional service framework; SPORT is sold as a consumer product. Both use the black headband with white Stormlight branding.

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

When should I choose the PRO 9000 instead?

When the work happens at speed or across distance: snowmobile, ATV, sweeping a valley from a ridge. The 9000 throws three times the light, at the cost of a heavier head and a larger pack you wear on the vest. For everything else — fish farms, line work, site runs, searches on foot — the 3100 is the lighter, longer-running tool. See the PRO 9000 →

How does the repair service work in practice?

Email us with what's wrong. We send you the replacement part with simple instructions. Most repairs take under five minutes with a T5 Torx driver; the battery pack and cable need no tools at all.

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 →

Can I use a different mount than the one in the box?

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. Our own four-prong click-release fits every Stormlight accessory.

Our helmet mount is available as an accessory and fits standard safety helmets and ski helmets. See the helmet mount →

Is the battery pack airline-safe?

Yes, in carry-on. The 2-cell pack (2× 21700, 6,000 mAh at 7.4 V) works out to about 44 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.

How long does shipping take, and what about customs?

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.

More Light. Less Lamp.

3,150 real lumens when you need to see the whole site. 40 hours on eco for the second shift. 62 grams on your head, 190 grams wherever you want the pack. Everything user-replaceable. Built for fish farms, power lines, snowmobile trails and search sectors — the outdoor work that doesn’t stop when the light does.

£229.00

Ships worldwide. 2–7 day delivery. All duties included.

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More Light for the Work That Happens Outside.

Stormlight Pro 3100 Headlamp

3,150 Lumens. Held for the Rated Runtime.

Real Conditions. Real Reviews.