Fenix E20 V2.0 AA Flashlight

Max Lumens: 350
Modes: 4
(3 customer reviews)

$54.00 $39.95

In stock and shipping!

The Fenix E20 V2.0 AA flashlight has been upgraded to be brighter and better than its predecessor. Powered by the included AA batteries. It has a maximum output of 350 lumens and the tail switch operates all functions including on/off and four brightness levels.  At only 5” long, this flashlight is a perfect everyday carry size. The Fenix E20 V2.0 also features a  patented ultra-thin optical lens with an automobile coating which reduces weight and allows for clearer vision. This flashlight is built rugged with a hard-anodized aluminum finish and an IP68 rating; dust-proof and waterproof underwater to 2 meters. The Fenix E20 V2.0 flashlight is a great option for those looking for an affordable standard AA powered flashlight in a compact everyday carry size.

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Max Lumens: 350
Modes: 4


e20 ansi chart

E20 V2.0 Size:

Length: 5.0” (127mm)
Body: 0.7” (16.8mm)
Head: 0.8” (21mm)

E20 V2.0 Weight:

1.5 oz. (42g) excluding batteries

E20 V2.0 Battery:

Two alkaline AA batteries. Ni-MH batteries recommended for best overall performance.


Two AA alkaline batteries, spare O-ring, lanyard


Limited Lifetime Guarantee from Fenix Lighting USA

Additional Features of the Fenix E20 V2.0 AA Flashlight

  • A Luminus SST20 LED with a lifespan of 50,000 hours.
  • Powered by 2 x AA batteries (Ni-MH/Alkaline).
  • Digitally regulated circuit for maintaining a stable output.
  • Intelligent overheat protection against high surface temperature.
  • Reverse polarity protection, to protect from improper battery insertion.
  • One-handed operation with the reverse tail switch.
  • Made of A6061-T6 aluminum.
  • Premium type HAIII hard-anodized anti-abrasive finish.
  • Automobile ultra-thin patented optical lens coating process.


Fully press the tail switch to turn on/off the light.

Output Selection

With the light switched on, tap the tail switch to cycle through Eco→Low→Med→High.

Battery Specifications

Type Dimensions Nominal Voltage Usability  
Ni-MH Battery AA 1.2V Recommended √√
Alkaline Battery AA 1.5V Usable
Non-rechargeable Battery AA 1.5V Usable
Rechargeable Li-ion Battery 14500 3.7V Banned ×

Warning: Do not mix batteries of different brands, sizes, capacities or types. Doing so may cause damage to the flashlight or to the batteries being used.

Battery Replacement

Unscrew the light tail and insert the battery with the anode side (+) towards the light head, then screw the light tail back on.

Low-voltage Warning

When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Eco output is reached. To ensure normal use, the flashlight will not turn off automatically and will work till the battery runs out completely.

Intelligent Protection

The light will accumulate a lot of heat when used on High output level for extended periods. When the light reaches a temperature of 58°C or above, the output will automatically step down by about 1% every 1 second until to Med to reduce temperature. When the temperature is reduced, the output will gradually increase by about 1% every 5 seconds until to High. The original output of every mode is restored each time the light is switched.

Note: *The above specification is from the result produced by Fenix through its laboratory testing. Actual output may vary slightly according to the working environments.

Usage and Maintenance

  • Disassembling the sealed head can cause damage to the light and will void the warranty.
  • Fenix recommends using an excellent quality battery.
  • If the light will not be used for an extended period, remove the battery, or the light could be damaged by electrolyte leakage or battery explosion.
  • Unscrew the tail cap half a turn or take out the battery to prevent accidental activation during storage or transportation.
  • Long-term use can result in O-ring wear. To maintain a proper water seal, replace the ring with an approved spare.
  • Periodic cleaning of the battery contacts improves the lamp’s performance as dirty contacts may cause the lamp to flicker, shine intermittently or even fail to illuminate for the following reasons:

A: The battery needs replacing.
Solution: Replace battery (Ensure battery is inserted according to the manufacturer’s   specifications).

B: The threads, PCB board contact or other contacts are dirty.
Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol.

If the above methods don’t work, please contact your authorized distributor.


  1. This flashlight is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the flashlight directly into anyone’s eyes.
  2. All information provided in this manual is subject to change without prior notice.

3 reviews for Fenix E20 V2.0 AA Flashlight

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  1. Blade (verified owner)

    Being part of the E series, this light is getting reviewed as such: an every day carry (EDC) light. To start off, it has the same reflector setup as my favorite light of all time, the E16. It makes a soft center and very diffuse surround. This is the most practical setup as it gives you enough practical throw combined with a surround that is wide enough to light up any obstacles in your walking path, helping you to avoid tripping over things. If you point the center beam at the ground about 10 or 12 feet in front of you, the surround will touch your toes. There is simply no better surround beam on the market.

    As for carry ability, this light is much smaller and lighter than the LD22 (another twin AA battery light). It clips in the pocket nicely, doesn’t weigh you down, and you almost forget it’s there. I would say the LD22 is more of a good outdoor light and as such would do a little better carrying on a pack whereas the E20 is truly an EDC. The size and weight are optimized for ease of use and carrying, making it a joy to carry.

    For the tint snobs out there, there is only a small caveat on the first 2 power levels, having a slightly greenish tint. However, at power levels 3 and 4, especially 4, it is a SNOW WHITE beam. To be sure, many many other lights on the market exhibit this same feature at lower power levels, but not all of them have such a nice white beam at higher power levels. I absolutely love it, and unless you are white-wall hunting at low power levels, you will never notice the tint as being a problem.

    The power levels are well thought out and the jump in brightness for each level is linear to my eyes. The tail switch has a very satisfying click and cycling through brightness levels is intuitive. The LED puts out every bit of 350 lumens if not a touch more. There is enough throw to get the job done in every realistic situation that you would carry this type of light for. I can’t imagine anyone expecting to ever need more throw for EDC tasks than this light can provide. If you want a good outdoor light that runs off of AA batteries I would recommend the LD22 instead, having more throw, a tougher body, and an SOS mode.

    As for modes, there are only 4 regular modes with no strobe or SOS feature. I have no problem with this at all and quite honestly I don’t know how you’d practically incorporate such modes with this type of clicky tail switch. Lots of people these days seem to be gravitating away from strobes on lights anyway, me being one of them. The majority of people do not need tactical ability in their EDC light, unless of course you need to throw an inpromptu dance party for your friends. If you need or want a light to blind someone to get away I would highly recommend the E16 as it has an awesome strobe that is easily activated. This light is great for navigation in the dark as well as inspecting anything you’d ever want to.

    If you are concerned about preserving your night time vision, the light does reset to the lowest mode after a few seconds. Personally I may or may not like to see a memory mode for the last mode used, but cycling through the modes is easy enough that this isn’t really an issue. Once your eyes have adjusted to the dark it is no fun getting dazzled, so I can see where this would benefit many people such as night time photographers. Also, I like the ability of a light to be able to tail stand but the awesome clicky switch on this light doesn’t allow for tail stand. In order to get such a great feeling tail switch it is going to NEED to protrude a bit to get that great action, sacrificing tail stand ability. Everything in life is a compromise, and with an EDC type light such as this, it makes sense to compromise tail stand for a better tail switch. I completely understand why Fenix did this and I think others should be aware of this fact. Did I mention I love the clicky tail switch?

    The price is right, the function is ideal for the task at hand, and it runs off of AA batteries. They sell AA batteries everywhere man walks, meaning you will always be able to find power for this great little light. I challenge anyone to find a more convenient light in this form-factor. And with that, I will end by saying CARRY ON.

    3 out of 3 people found this helpful. Was this review helpful to you?
  2. Frank Whorton (verified owner)

    Great little light for the price. The tapping the tail to change brightness takes some getting used to, but I like it better than a button on the side because you always know where the tail is, but a switch on the side is a different story. I bought it on the excuse that I have 36 AA batteries that will go bad before they are ever used. This is my 12th Fenix purchase, I believe. The only thing I have ever been disappointed with were their bike lights, but that’s a different review. See pics for size comparison.

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    Image #1 from Frank Whorton
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    1 out of 1 people found this helpful. Was this review helpful to you?
  3. Fenix Lighting US Product Manager (store manager)

    Detail review from inside our company on the new E20 V2.0:
    This upgrade from the original E20 provides more light with less throw (wider diffused beam). Why less throw? We really value and need more compact options in our line (and get ready cause more are coming). We felt the 2AA E20 was a better service to our customers with half the weight of the original and a very noticeable 20% reduction in size. Part of making it shorter and smaller required shrinking the depth and width from the original E20 head and reflector. By doing this you dramatically lose your ability to throw light as far. We also used an optical lens to keep any artifacts from showing and making the light as clean as possible when you’re lighting up the darkness. This light is really compact and comfortable in hand or pocket. Light enough to feel comfortable in a shirt pocket (all you EMT take note). We also added a nice pocket clip and adjusted knurling to upgrade the appearance to match our most recent released designs.

    I think this light is the perfect backup flashlight for our members of public safety (MOLLE to vest, clip to shirt pocket) and can be a great light to carry for home, car, toolbox, camping kit, etc. It’s really not going to blow you away with power (of course), but is highly functional in a multitude of your day to day uses (especially close up lighting).

    I’ve been asked to put why I would not buy this light (even though I would). I would not buy this light if I was looking for an option to reach longer targets (see farther). We have plenty of other options in our line for that and I would stick to those. Some of our customers are also going to wish this had a red light AND THIS DOES NOT, so I wouldn’t buy if you’re requiring a red light option.

    I’m biased, but I love the simplicity of this light and would recommend in a heartbeat the combination of a LD30 and E20V2.0 for a powerhouse EDC combo or a PD36R and E20V2.0 for a perfect duty combo within Law Enforcement/Security operations. I hope you all value it as much as I do.

    10 out of 11 people found this helpful. Was this review helpful to you?
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