The flashlight certified to work where an ordinary light could set off an explosion.
Flameproof to Ex d IIC T5 Gb, with 830 lumens reaching 270 metres, sealed in a tank-tough body for hazardous and marine industries.
- Certified explosion-proof: Ex d IIC T5 Gb (GB3836 rated)
- 830 lumens on High, throwing 270 m at 18,300 cd
- Three levels on a glove-friendly sliding switch
- 10mm epoxy resin explosion-suppressive lens
- 3mm aerospace-grade aluminium body, 20% thicker than ordinary lights
- IP67 dustproof and waterproof, impact resistant to 1.5 m
- Runs on one 18650 or two CR123 cells
- 250g without battery, 152.2mm long
Certified explosion-proof, not just rugged.
The EF1 carries an Ex d IIC T5 Gb mark, accredited by the PCEC, the Tianjin Supervision and Test Center of Ex-products of China Petroleum and Chemical Industry. The flameproof enclosure contains any internal spark so it cannot reach the flammable gas or dust around it.
That clears it for Zone 1 and Zone 2 work, across gas groups IIA, IIB and IIC and temperature classes T1 to T5, the same GB3836 rating that lets it serve land and marine petroleum, petrochemical and chemical sites where an ordinary light is a risk you cannot take.
830 lumens, three levels, and a beam that carries.
A CREE XM-L2 U3 LED puts out up to 830 lumens, with an integrated Precision Digital Optics reflector that pushes the beam to 270 metres and 18,300 candela. That reaches well across a tank farm, a tunnel face or a deck at night.
Step down to 320 lumens for working light or 4 lumens for close, lasting tasks. The LED is rated for 50,000 hours, so it sees out the life of the light.
A sliding switch you can read by feel, even in gloves.
The control collar slides between four marked positions: 0 for standby, 1 for Low, 2 for Mid and 3 for High. You change brightness one-handed without hunting through a mode cycle, and the detents are large enough to find with a gloved thumb in the dark. Advanced Temperature Regulation watches the body temperature and trims the output to keep it stable and safe through a long run.
Runs on the cells you can already source.
The EF1 takes a single 18650 Li-ion cell or two CR123 batteries, so you can keep it running on common, easy-to-stock power. It also accepts a single CR123 (3V) or RCR123 (3.7V) cell when that is what you have on hand.
On an 18650 you get 1 hour 45 minutes on High, 3 hours on Mid and 150 hours on Low. The battery and charger are not included, which lets you match the cells to your own kit.
Built like a tank for the worst conditions.
A 10mm-thick epoxy resin explosion-suppressive optical lens sits over a 3mm aerospace-grade aluminium body, 20 percent thicker than an ordinary flashlight. A robust HAIII military-grade hard-anodized finish guards it against corrosion in damp, heat and other harsh settings.
It is sealed to IP67 against dust and water and survives a 1.5 metre drop, so it keeps working through the knocks and wet of an industrial shift.
WHY THE EF1 OVER AN ORDINARY LIGHT
Certified for explosive atmospheres
An Ex d IIC T5 Gb mark means its flameproof enclosure contains any spark, where an ordinary light is an ignition source you cannot risk.
Built like a tank
A 10mm epoxy resin lens and a 3mm aluminium body that is 20% thicker than usual shrug off the knocks of industrial work.
Sealed to IP67
Dust and water sealed and impact resistant to 1.5 m, it keeps going through wet, grime and rough handling.
One-handed, glove-friendly
The marked sliding switch changes brightness with one gloved hand, no mode cycling in a hazardous space.
WHERE THE EF1 WORKS
Oil, Gas & Marine Petroleum
Rigs, tank farms and vessels where flammable vapour rules out any light that can spark.
Petrochemical & Chemical
Plants handling solvents and reactive dusts, especially in production, storage and transport areas.
Mining & Tunnelling
Railway tunnels, culverts and mine work where gas or dust can build up underground.
Utilities & Construction
Electricity, smelting, ports and civil construction sites that need a certified, rugged light.
OUTPUT & RUNTIME
| High | 830 lm · 1 h 45 m (18650) / 1 h 30 m (2×CR123) |
| Mid | 320 lm · 3 h (18650) / 2 h 45 m (2×CR123) |
| Low | 4 lm · 150 h (18650) / 60 h (2×CR123) |
*Beam and test conditions
High throws 270 m at a peak beam intensity of 18,300 cd. Figures are ANSI/NEMA FL1 rated, measured with one Nitecore 18650 (3.7V, 2600mAh) or two Nitecore CR123 (3V, 1700mAh) cells.TECHNICAL SPECIFICATIONS
| LED | CREE XM-L2 U3 (50,000 h life) |
| Max Output | 830 lumens |
| Max Beam Distance | 270 m |
| Peak Beam Intensity | 18,300 cd |
| Explosion-Proof Rating | Ex d IIC T5 Gb (GB3836, PCEC accredited) |
| Battery | 1 × 18650, or 2 × CR123 / 1 × RCR123 / 1 × CR123 |
| Lens | 10mm epoxy resin explosion-suppressive optical lens |
| Material | 3mm aerospace-grade aluminium alloy, HAIII hard anodized |
| Switch | Front sliding control (0 standby / 1 low / 2 mid / 3 high) |
| Impact Resistance | 1.5 m |
| Water Resistance | IP67 (dustproof and waterproof) |
| Dimensions | 152.2 mm length × 40 mm head |
| Weight | 250 g (without battery) |
| User Manual | Download PDF |
FREQUENTLY ASKED QUESTIONS
What does the Ex d IIC T5 Gb rating actually mean?
It certifies the EF1 as flameproof: its enclosure is built to contain any internal spark or flame so it cannot ignite the explosive gas atmosphere around it, across gas groups up to IIC, with a surface temperature held within class T5. In plain terms, it is cleared for the Zone 1 and Zone 2 areas where an ordinary flashlight is an ignition risk.
Which batteries can I use, and are they included?
The EF1 runs on a single 18650 Li-ion cell or two CR123 batteries, and also accepts a single CR123 (3V) or RCR123 (3.7V). The battery and charger are not included, so you can match the cells to your own kit. Note the on-body marking: change batteries only in a secured, non-hazardous environment.
How rugged and waterproof is it?
It pairs a 10mm epoxy resin explosion-suppressive lens with a 3mm aerospace-grade aluminium body that is 20% thicker than an ordinary light, finished in HAIII military-grade hard anodizing. It is sealed to IP67 against dust and water and rated to survive a 1.5 metre drop.
What's In The Box
- 1× Nitecore EF1 - explosion-proof flashlight (battery and charger not included)
- 1× Adjustable wrist lanyard
- 2× Spare O-rings
- 1× 3-way holster
Certified safe for the places that need it most.
GET YOUR EF1 NOWYou’re Backed by Our 60-Day Ironclad Guarantee
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Try it for 60 days. If it’s not right for you, send it back.
We stand behind our gear. If you’re not happy with your purchase, just return the full package within 60 days and we’ll issue a full refund—no fuss, no forms, no hoops to jump through.
What Happens After You Order
- You’ll get an instant order confirmation email with your receipt.
- We’ll pack your order the next working day and send you a tracking number once it’s on the way.
- From the moment you order to the moment it reaches your hands, we’re here to keep you updated and supported.
When will I receive my gear?
- Singapore: Delivered to your doorstep in 4–6 working days.
- International: Arrive within 10–14 working days.
Returns and warranty
- Every product comes with a 1 to 3-year replacement warranty (depending on the item).
- If anything isn’t working right, just let us know. We’ll make it right.
FREE Gift with Purchase: Limited Edition Ember Shard Whistle
Spend $99 or more today, and we'll automatically include a limited-edition Glow-in-the-Dark Ember Shard Whistle when packing your order.
Charge it quickly under sunlight or your flashlight, and enjoy its subtle glow throughout the night—perfect for marking gear, emergency kits, or attaching to your bag.
Limited quantities. These will be swapped (at our discretion) to other gift items if shards are unavailable.
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