[Review] Fenix E12 v2.0 (2020) - 1 x AA, 160 lumens, A Simple Clicky EDC Flashlight

rookiedaddy

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Apr 21, 2009
Messages
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Receive a unit of Fenix E12 v2.0 from Fenixlight a few weeks ago (together with Fenix TK11 Tac and Fenix E28R) for testing. This is a simple 3 modes single AA EDC flashlight that does not support 3.7V 14500 LiIon battery.

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Let's take a quick look at the specifications of E12 v2.0:
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The Fenix E12 v2.0 (2020) flashlight...
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It comes with bi-directional pocket clip. However...
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due to the design of the clip holding mechanism, some may have problem with the hump/protrusion of the clip design when using it onto most thicker clothing/pants like denim jeans.
On the other hand, the pocket clip does allow a somewhat deep pocket carry.

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Fenix E12 v2.0 (2020) is really small and lightweight (also depending on what battery you use) and can easily disappear in your hand...

The user interface is very simple as it's using a reverse-clicky switch:
  • ON/OFF: fully press the tail switch
  • Mode switching method 1: with E12 v2.0 turned-ON, tap the tail switch to cycle Low-Medium-High mode
  • Mode switching method 2: with E12 v2.0 turned-ON, twist the head (quickly loosen and tighten the head within 0.5 seconds) to switch/cycle Low-Medium-High mode
  • Mode Memory: Fenix E12 v2.0 does not have mode memory, if you leave Fenix E12 v2.0 Off for more than 0.5 second, the next time you turn it On it will default back to Low mode
  • Lockout: Loosen the head a quarter turn and you have effectively lockout Fenix E12 v2.0

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The tailswitch boot button is covered by 2 protruding lanyard hole design and the boot is recessed enough for tail-standing. I wish Fenix E20 v2.0 has the same design though...

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seen here on the left is the boot button of Fenix E12 v2.0 (2020), while on the right is the boot button of Fenix E20 v2.0. The Fenix E20 v2.0 boot button is not recessed enough to allow it to tail-stand. Both Fenix E12 v2.0 and Fenix E20 v2.0 has reverse-clicky tailswitch based on similar design, the failure of Fenix E20 v2.0 to tail-stand is simply unexpected.

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The head positive contact.

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The body negative contact spring.

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The copper colored stainless steel bezel ring add a touch of aesthetic cool-ness to Fenix E12 v2.0

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battery is inserted positive side (button) towards the head.

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The thin optical lens used in some of recent Fenix E-series flashlight models. Sitting behind this optics is the MATCH CA18-3X2 LED from Genesis Photonics (couldn't find much information about this LED except who manufacture it).

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comparing the optics of E12 v2.0 on the left to E20 v2.0 on the right.

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and a full size comparisons between Fenix E12 v2.0 and Fenix E20 v2.0.

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comparing the High mode of Fenix E12 v2.0, 160 lumens to the High mode of Fenix E20 v2.0 350 lumens (image captured at 1/1000s shutter speed @ ISO-50).

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above is the quoted output and runtime from Fenix for E12 v2.0.

my measured output using Panasonic Evolta alkaline battery:
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The usual disclaimer: I do not claim the above measured lumens as authoritative nor an indication of over/under-stating the number given by manufacturer. It's calibrated against some known light output (e.g. SureFire, Elzetta, etc.) so take it with a grain of salt and just as a relative reading.

and the runtime test of the High mode of 160 lumens using 3 different batteries:
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Note that when using the 1.5V KeepPower P1450U LiIon battery, although it gives a flat battery regulated output of 160 lumens for ~70 minutes, the light will just turned-Off when the battery protection circuit kicks-in.

In conclusion, I really like this simple Fenix E12 v2.0. I highly recommend that when you get this flashlight, run it with a good NiMH rechargeable battery the likes of IKEA LADDA 2450mAh or the made-in-Japan Eneloop Pro. Although in my testing, the Fenix E20 v2.0 with Luminus SST20 LED seems to be more efficient than this Fenix E12 v2.0 with MATCH CA18 LED, the advantage of Fenix E12 v2.0 is the light weight, small size and near-deep-pocket carry option it offers. I would however love to see a High CRI or warm tinted LED version of this Fenix E12 v2.0 and with optional support for 3.7V 14500 LiIon battery.

Thanks for reading. :grin2:
 

Buck91

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Feb 26, 2007
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1,760
Location
USA
Nice review, thanks! I feel like the sst20 in my e20 is very green. Hard to judge based off your pics on a phone screen but how is the tint on that match led?
 

rookiedaddy

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Messages
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Nice review, thanks! I feel like the sst20 in my e20 is very green. Hard to judge based off your pics on a phone screen but how is the tint on that match led?
thanks for the kind words. the tint on my test unit (Fenix E12 v2.0) is cooler than the E20 v2.0, less greenish. Please check out the picture below with a warmish High CRI Nichia 219BT LED to balance the tint captured:
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