Atom ALR2

Stainless Steel Finish



(1) CR2 100 5 46 hr 2.5 hr CREE XP-G2

Please note that this model uses CR2 batteries.

Designed as the ultimate EDC (every day carry), the Atom collection features a simple two-mode interface, extended runtimes, and a neodymium magnet embedded in the tail for quick attachment to any ferrous surface. The ultra-thin and durable bead-blasted stainless steel casing is barely bigger than the battery it contains. Sleek and fashionable, the Atom is the most practical FOURSEVENS flashlight. Every keychain should have an Atom.

Unlike most of our lights, the lights in the Atom collection are flood-type lights and do not have a parabolic reflector. This removes the hot spot and gives you a very smooth, wide viewing angle, allowing you to get the most out of your peripheral vision. Atom lights are ideal for doing close-up work such as automotive repair, where seeing everything nearby is more important than seeing at a distance.

Did you know that this light was designed for use with our 360° Headlamp Kit? Don't forget to pick up the kit to get the most out of your Atom light!


Dimensions Length: 1.67 inches / Diameter: 0.74 inches / Weight: 1.05 oz
LED Emitter CREE XP-G2
Voltage range 1.0V-4.2V
Spot Beam N/A
Flood Beam Angle: 116 Degrees
Diameter at 0.5 meters: 1.6 meters
Brightness Levels Low: 5 lumens, 46 hrs / High: 100 lumens, 2.5 hrs
Special Modes
Reflector None
Body Material Stainless Steel
Bezel Material Stainless Steel
Lens Material Plastic optic lens
Water Resistance IPX8
Included Accessories Split-ring, CR2 battery
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2 Output Modes
Integrated Magnet
Water Resistant (IPX-8)



Operating your Atom is simple. Insert battery with the positive side (+) toward the head. Turn on the Atom by tightening the head. The Atom will initially turn on at low mode; continue turning the head and it will switch to high mode. Once in high mode do not continue to tighten the head or you may damage the Atom. Turn off the Atom by simply loosening the head until it turns off.


360° Headlamp Kit

The 360° Headlamp Kit features two-way articulation to point light in any direction with single-hand on/off operation. The headlamp can be worn on the forehead or to the side above the ears and works with FOURSEVENS Atom and Mini flashlights. Atoms lock into position and are held in place securely with the integrated neodymium magnet. Mini flashlights are held by using the 2 included o-rings for each Mini. All lights are sold separately and are not included in this kit.

Compatible flashlights include: Mini Mk II, Mini ML-X, Mini MA, Mini MLR2, and all Atom flashlights as well as the Preon P0. This product is not compatible with the Mini M2A or the Mini TURBO Mk II.

The 360° Headlamp Kit includes the head strap, headlamp cradle, 3 fitted adapters for the different Atom models, and 2 o-rings for each of the Mini models.

Download 360° Headlamp Kit Manual PDF

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ALL Atoms


(1) AAA 25 0.24 120 hr 2 hr CREE XP-E


(1) AAA 30 0.3 120 hr 2 hr Nichia 219B


(1) AA 70 1.5 45 hr 3 hr CREE XP-G2


(1) AA 70 1.5 45 hr 3 hr CREE XP-G2


(1) CR123A 110 6 40 hr 3.5 hr CREE XP-G2


(1) CR123A 110 6 40 hr 3.5 hr CREE XP-G2

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