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Fenix E03R USB-C Rechargeable LED Keylight - 260 Lumens - Uses Built-In 200mAh Li-Poly Battery Pack

Fenix E03R side angle
Fenix E03R back angle
Fenix E03R profile
Fenix E03R in hand
Fenix E03R front packaging
Fenix E03R back packaging
Fenix E03R side angle
Fenix E03R back angle
Fenix E03R profile
Fenix E03R in hand
Fenix E03R front packaging
Fenix E03R back packaging
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Fenix E03R Keylight

USB-C Charging Packed into a Super Sleek Design

Get yourself a compact keylight with not one, but two different color outputs! The Fenix E03R has an impressive 260 lumen output with a beam that reaches up to 42 meters away. Packed into a design that is less than 2" in length, the E03R is the perfect accessory to hang from your keyring or to keep in your pocket as an EDC light. The red output on the E03R is great for up-close task or use the red flash setting to signal emergencies or warnings. USB-C charging makes this keylight a must-have, allowing the E03R is recharge in under 1.5 hours. You'll want to keep the E03R on your backpack, keyring, or in your pocket for when you need light the most.


  • Built-in 200mAh Li-polymer battery
  • Battery level indication and low-voltage warning
  • Intelligent overheat protection against high surface temperature
  • All metal CNC machined body
  • All-in-one recessed side switch that prevents accidental activation and single-handed use
  • Premium type HAIII hard-anodized anti-abrasive finish

Included Accessories:

  • Key chain
  • User Manual
  • Warranty Card


  • Power Source: 200mAh Li-Polymer Battery Pack
  • LEDs:
    • White LED: MATCH CA18
    • Red LED: Everlight 2835
  • Output / Runtime / Throw:
    • High: 260 lumens / 45 minutes / 42 meters
    • Medium: 80 lumens / 1 hour 15 minutes / 25 meters
    • Low: 30 lumens / 3 hours / 16 meters
    • Eco: 5 lumens / 18 hours / 7 meters
    • Red: 4 lumens / 5 hours 30 minutes
    • Red Flashing: 4 lumens
  • Peak Beam Intensity: 441cd
  • Impact Resistance: 1 meter
  • IP Rating: IP66
  • Dimensions: 1.85" x 0.94" x 0.47"
  • Weight: 0.78oz
Runtime (Hours):-0.751.25318
Output Modes:3+ Brightness Levels, Red
Compatible Batteries:Battery Pack
Batteries Included:Yes
Included Accessories:Batteries, USB Cable
Flashlight Usage:Keychain
Throw Distance (Max):42m
Switch Location:Body
Product Certifications:IP66
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Primary Material:Anodized Aluminum
Product Weight:0.78oz
Product Dimensions:1.85" (L) x 0.94" (W) x 0.47" (H)
Country of Origin:China
4 Reviews
75% (3)
0% (0)
0% (0)
25% (1)
0% (0)
By Flashlight J.
Pittsburgh PA area
May 21, 2021
I Love this light. I carry it in my pocket always. It is so Small and flat, but it has multiple levels so it can do most tasks. It has a battery strength meter Led in the switch. Has Red Led that is pretty concentrated so it can go indoors 40 feet in my living room or basement with ease. I have not used the red outdoors yet. The white Led has 4 levels and is Very useful! I use the lockout when the light is in my pocket so it doesnít turn on by accident. Just 2 silent presses of the switch to lock. It has not turned on in my pocket when I use the lockout function. Then 2 quick presses turns on the white Led at level 2 out of 4 levels which is perfect fir most tasks. The light can side stand, however It can tail stand at an angle on a flat stable surface. This probably wasnít intended to be a feature because the lanyard eyelet is almost in the way of tail standing the light. Comes with USB-C cable which is micro and can be inserted either way. Very nice.
By johnny v.
Maybe it needs a lock on it for the power button 🤔
January 18, 2023
I like the little light, but it goes dead in my pocket. I guess it comes no in my pocket and kills the battery...
By Donny
Great upgrade for keychain!
January 17, 2022
The Fenix E03R starts out at a brightness that's equivalent to the old coin cell keychain lights that I used to carry and gets bright enough that I can use it for a path light in dark campgrounds, lets me spot the deer in the back yard before letting the dog out at night, and still goes on the keychain. I havenít found a use for the red light yet, but if I somehow end up in a dark sky campground - I'm good.

I really like the EO3R interface, it starts at the lowest brightness and is so much easier to navigate that those previous keychain lights I have. I donít have to fumble to make it do what I want.

There are over 100 "keychain" lights available on Battery Junction and I could have certainly chosen something else, but I have been buying Fenix lights from Battery Junction since 2013 and will most likely continue to do so.
By Fernando L.
Best EDC flashlight
February 10, 2021
Best EDC flashlight barnone
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