The Fenix E03R V2.0 is one of the smallest rechargeable flashlights you can put on a keyring — and one of the most surprising. Squeezed into a CNC-machined, full-metal body just 2 inches long, it throws a bright 500-lumen beam nearly 300 feet (90 meters), the kind of output you'd expect from something twice its size. A USB Type-C port and 400mAh battery keep it charged and ready, with an LED indicator so you always know where it stands, and an IP66 rating means splashes and dust are a non-issue.
This tiny rechargeable flashlight is tough, genuinely useful, and small enough to disappear until the exact moment you need it — which makes it as good a gift as it is a daily carry.
Output and Runtime by Mode
Fenix E03R V2 ANSI/PLATO FL1 specifications
Mode
Output
Runtime
Beam distance
Intensity
High
500 lumens
1 h 20 min*
90 m / 295 ft
2,082 cd
Med
150 lumens
2 h
50 m / 164 ft
630 cd
Low
30 lumens
6 h 35 min
20 m / 66 ft
127 cd
Eco
5 lumens
30 h
9 m / 30 ft
20 cd
Red / Red Flash
5 lumens
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Breathing light
1 lumen
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Tested by Fenix with the built-in 400mAh battery. *Includes reduced output after thermal step-down. Impact resistance 1 m; IP66.
