Acebeam E70 Mini Flashlight Review

Acebeam E70 Mini Flashlight Review

Acebeam released a mini version of the E70 flashlight! This version is a triple emitter High CRI 18650 version, and packs a punch! Read on!


Official Specs and Features

Here’s a link to the Acebeam E70 Mini flashlight product page.

Versions

I believe this is the only E70 Mini at this time. Of course, there’s the E70 which I already reviewed. And that (bigger) E70 comes in many formats – different body materials, different emitters, etc. But this E70 Mini seems to be just one version (for now!)

Price

Acebeam has the E70 Mini flashlight at $79.90 right now.  That includes the button-top 18650 cell you see in this review. If you really don’t need a cell, the light alone can be had for $69.90. You can buy the Acebeam E70 Mini flashlight on Amazon.com!


Short Review

I liked the Acebeam E70 just fine, but always thought it was too big. This 18650 version answers not only that complaint but offers high CRI and 5000K output. And in a triple! I love all of those things. Now if Acebeam would just make that inner blue sleeve in orange…..

Long Review

The Big Table

Acebeam E70 Mini flashlight
Emitter: Nichia 519a (5000K)
Price in USD at publication time: $69.90 on Amazon.com (referral link)
Cell: 1×18650
Turbo Runtime Graph High Runtime Graph
LVP? Yes
Switch Type: E-Switch
Quiescent Current (mA): ?
On-Board Charging? Yes
Charge Port Type: USB-C (on cell)
Charge Graph
Power off Charge Port
Claimed Lumens (lm) 2000
Measured Lumens (at 30s) 1376 (68.8% of claim)^
Candela per Lumen 4
Claimed Throw (m) 153
Candela (Calculated) in cd (at 30s) 253lux @ 4.602m = 5358cd
Throw (Calculated) (m) 146.4 (95.7% of claim)^
Claimed CCT 5000K
Measured CCT Range (K) 4800-5000 Kelvin
Item provided for review by: Acebeam
All my Acebeam reviews!

^ Measurement disclaimer:  I am an amateur flashlight reviewer.  I don’t have $10,000 or even $1,000 worth of testing equipment.  I test output and such in PVC tubes!!  Please consider claims within 10% of what I measure to be perfectly reasonable (accurate, even).

What’s Included

Acebeam E70 Mini flashlight what's included

  • Acebeam E70 Mini flashlight
  • Acebeam 3100mAh 18650
  • Spare o-rings (2)
  • Charging cable (USB to USB-C)
  • Lanyard
  • Manual and papers

Package and Manual

Acebeam E70 Mini flashlight lens cover

Acebeam E70 Mini flashlight manual

Build Quality and Disassembly

Acebeam E70 Mini flashlight

First of all, how much stuff is going on here with this light.  There are body spirals.  More than just spirals – there’s an inset body, with blue anodization.  There are tritium slots in the shoulder.  There are cooling…. circles… in the head.  It’s a lot to take in! I’m happy with the size of this light. Generally because I’d say I’m happy with the size of 21700 cell lights. But this is an 18650 cell light…. What I mean by that is that it’s “probably big” for an 18650 light, but the size isn’t offputting (You should be off pudding!), because the size is still acceptable. But look at the size comparisons below to make your mind up. (It’s shorter than a Convoy S2+, and everyone should have many of those!)

 

One thing that I note about the body-on-body is that the outside body, due to having raised edges, (or whatever?) has a sound.  It doesn’t sound cheap, and it’s not a bad sound, but it’s an unusual sound because most flashlights don’t have exposed inner sleeves like this.  It’s neither bad nor good but it’s noteworthy enough that I felt like mentioning it.  I have a feeling that the stainless version doesn’t exhibit this.  (If you’ve ever run a fingernail across the fins of a processor’s cooler, then … it’s that.)

I’ll say again – there’s a lot going on in this body.  Circles on the head.  Tritium slots.  Spirals in the body.  Color in the body.  If it was one or the other (circles or spirals) I might like it more but still, this is a good-looking light.  I like the circles, aside from their obvious “Oveready-ness.”  I am unsure how these circles aid in cooling.  That long slot betwixt the circles does not seem to be a tritium slot – it’s not deep enough.

Acebeam E70 Mini flashlight tailcap

Here are the actual tritium slots – these seem to be 1.5mm x 6mm, and there are 6 slots total. Also, note the toothed bezel.  It feels like stainless steel.

Acebeam E70 Mini flashlight bezel

I find the tritium slots to be a great addition to the Acebeam E70 Mini flashlight.  Now’s an unfortunate time to be looking for tritium, of course, since it’s as rare unicorn tears.  But when it’s available….

Only the head comes off the E70 Mini.  I have a feeling with the right tool that the tailcap will come off too, but let me assure you that it won’t happen accidentally. You can see that the threads are square-cut, anodized, and appropriately lubed.  They start easily too, and because of the anodization, a light loosening of the head will mechanically lock the light.

Acebeam E70 Mini flashlight head contacts and threads

Inside, there are springs on the head and tail.

Acebeam E70 Mini flashlight tail spring

 

Size and Comps

Size: 4.37”/111mm (Length) x 1.02”/26mm (Head Dia.) x 0.92”/23.4mm (Body Dia.)
Weight: 72g (2.53oz) without battery, 120g(4.23oz) with battery

If the flashlight will headstand, I’ll show it here (usually the third photo).  If the flashlight will tailstand, I’ll show that here, too (usually the fourth photo).

Acebeam E70 Mini flashlight in hand

Here’s the test light with the venerable Convoy S2+.  Mine’s a custom “baked” edition Nichia 219b triple.  A very nice 18650 light.

And here’s the light beside my custom engraved TorchLAB BOSS 35, an 18350 light.  I reviewed the aluminum version of that light in both 35 and 70 formats.

Acebeam E70 Mini flashlight beside torchlab boss 35

Here are the two E70’s compared. The E70 (Big) is much bigger than the E70 Mini.  Much bigger in fact, and probably bigger than “proportionally bigger.” Which is great because that means the E70 Mini is actually proportionally smaller, making it fairly reasonable! Probably some of that is due to it being a triple, and not having the height of a reflector in there.

Retention and Carry

There are two means of carry for the Acebeam E70 Mini flashlight included.  First is this pocket clip, which is a fairly standard-looking steel clip.

I say only “fairly standard” as it’s still sort of different. And it’s definitely different from the E70 clip, which is bent. This one is actually fairly straight and has a surprising amount of stiffness.

Acebeam E70 Mini flashlight pocket clip

These two holes appear to be an alternate mounting point for the pocket clip. It’s also possible that they offer different hole spacing for use of a different type of pocket clip (ie a Steel flame clip). There are also two other holes, which I missed for pictures in this section, which are not only different, they’re not threaded and bigger, and are for the lanyard.

Acebeam E70 Mini flashlight screw holes

Here’s the included lanyard. I attached it to the pocket clip, which works fine. There are also holes in the tailcap (not seen below!)

Acebeam E70 Mini flashlight lanyard

Power and Runtime

The Acebeam E70 Mini flashlight is powered by a single lithium-ion cell.  The cell tube is suitable for a single 18650 cell.

Acebeam E70 Mini flashlight beside 18650

For $10 you can add on the cell seen here. This is a standard button-top cell but does offer USB-C charging. If you don’t need that and have your own cells, using your own will definitely save you a few dollars.

Acebeam E70 Mini flashlight included 18650

The cell goes into the light in the usual way: positive terminal toward the head.

Acebeam E70 Mini flashlight 18650 installed

Below are three runtime graphs.  The output looks pretty good but does step down quickly.  After the stepdown, the Acebeam E70 Mini maintains >400 lumens for over an hour and a half.

Acebeam E70 Mini flashlight runtime graph

High (second-highest output) maintains over 600 lumens for over an hour. Not too bad.

Acebeam E70 Mini flashlight runtime graph

The next graph is the third-highest is very stable at around 290 lumens.

runtime graph

The fourth-highest output is very stable at around 130 lumens.

Acebeam E70 Mini flashlight runtime graph

Charging

The cell offers charging by way of a USB-C charging port in the positive terminal.

Acebeam E70 Mini flashlight 18650 charging port

A USB to USB-C cable is included.

Acebeam E70 Mini flashlight charging cable

While charging, the top (positive end) of the cell is red. When charging is complete, the indicator turns green.

Both USB and USB-C power can charge the cell. The profile is about the same for either, and requires around 3 hours to complete.

Acebeam E70 Mini flashlight charging graph Acebeam E70 Mini flashlight charging graph

Modes and Currents

Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens Tailcap Amps
Turbo 2000~600 40s~2h 1376 ?
High 900~600 2m~1h55m 645 ?
Mid2 380 3h15m 286 ?
Mid1 170 7h 131 ?
Low 60 19h 52 ?
Ultra-Low 12 100h 9.9 ?

Pulse Width Modulation

No PWM on any mode.  No surprise with Acebeam lights, though.

For reference, here’s a baseline shot, with all the room lights off and almost nothing hitting the sensor.  Also, here’s the light with the worst PWM I could find.  I’m adding multiple timescales, so it’ll be easier to compare to the test light.  Unfortunately, the PWM on this light is so bad that it doesn’t even work with my normal scale, with is 50 microseconds (50us).  10ms5ms2ms1ms0.5ms0.2ms.  In a display faster than 0.2ms or so, the on/off cycle is more than one screen, so it’d just (very incorrectly) look like a flat line.  I wrote more about this Ultrafire WF-602C flashlight and explained a little about PWM too.

User Interface and Operation

A single tail switch is used for controlling the Acebeam E70 Mini flashlight.  This is an e-switch and has what seems to be a metal cover.  The switch has very low action and can be actuated from any point (even the edge).  I like the switch quite a bit.

Acebeam E70 Mini flashlight e-switch

Acebeam E70 Mini flashlight e-switch

The user interface is a bit unusual in that it requires a double click from off to get into the regular modes. I believe the UI to be exactly like the big E70 except that you can now cycle into the modes from Ultra-Low!

Here’s a UI table!

State Action Result
Off Hold Ultra-Low
Off Double Click On (Mode Memory, except Ultra-Low or Turbo)
On Click Off
On Hold Mode advance (Low>Mid1>Mid2>High)
On Double Click Turbo
Turbo Click Memorized mode (except Ultra-Low)
Any Triple Click Strobe
Off Hold 5s Lockout
Lockout Hold 3s Unlock to Ultra-Low

LED and Beam

Acebeam smartly used a triple emitter array here, and also smartly used some of the newest and best emitters. These three are Nichia 519a emitters in 5000K and high CRI.  They’re really fantastically great.

Acebeam E70 Mini flashlight emitters and TIR

The toothy bezel (I’m not sure it’s really a strike bezel) allows light to escape.

Acebeam E70 Mini flashlight headstanding on bezel Acebeam E70 Mini flashlight on

LED Color Report (CRI and CCT)

Just look at those circles! At a glance you can evaluate how closely the big red circle matches the big black circle – the closer these two are the more you’re going to like the output from any flashlight. These two are VERY CLOSE. Acebeam’s claim of “5000K” is supported by these tests, as is their claim of High CRI. This is a very very good report.

Beamshots

These beamshots are always with the following settings:  f8, ISO100, 0.3s shutter, and manual 5000K exposure.

Tint vs BLF-348 (KillzoneFlashlights.com 219b version) (affiliate link)

I keep the test flashlight on the left, and the BLF-348 reference flashlight on the right.

I compare everything to the KillzoneFlashlights.com 219b BLF-348 because it’s inexpensive and has the best tint!

 

Conclusion

What I like

  • Interesting design and great little brother to the E70
  • Tritium slots
  • Excellent High CRI output
  • Great beam profile (defined broad spot with even output)
  • 5000K claim is met
  • Hits throw specs

What I don’t like

  • Double click from off?  I don’t hate it but it’s unusual
  • Overall size – it’s a big light
  • Nonremovable lanyard? Actually removing the lanyard is no problem, but getting it back on without removing the tailcap will be a burden
  • The available cell adds $10 to the cost – this is an unreasonable cell price

Notes

  • This content originally appeared at zeroair.org.  Please visit there for the best experience!
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