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LumaPower LM21 EDC LED Flashlight with CREE XP-G2 - Uses 1 x AAA

Lumapower LM21 EDC flashlight right side angle
Lumapower LM21 EDC flashlight upright
Lumapower LM21 EDC flashlight right side angle
Lumapower LM21 EDC flashlight upright
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LumaPower LM21 EDC LED Flashlight with CREE XP-G2 - Uses 1 x AAA

The LumaPower LM21 is the perfect balance between output, run time, and durability. Compact and lightweight, this light will go wherever you take it as it easily fits in your pocket. The LM21 also has an integrated multi-level output system which switches between three modes. Get a large hot spot in a small package with this awesome flashlight from LumaPower!

High Output

Bursting With Light

From just one single CREE XP-G2 LED, this light throws out a beam of up to 300 lumens, which is incredible considering its small size. With the multiple output level system, you can also get 185 lumens and a 10 lumen low mode for extended run times, making this small light perfect for time consuming applications such as mechanic work or home improvement. Keep it chugging for over 53 hours!

Sleek Design


The small, lightweight, and durable design of the LM21 makes it a keeper for hands-on work. In fact, it is so lightweight and small that you can easily fit it in your ear like a pencil! No extra straps or bulky shapes to get in the way with this little guy. Not only that, but it runs on a widely available and inexpensive AAA battery so you never have to worry about battery expenses. Of course, this light has a military grade Type III hard anodized body and a lens with an anti-reflective coating so it is not only scratch resistant, but has a clear and crisp hot spot.

  • Military Grade Type III hard anodized body
  • Compatible with alkaline, NiMH, or Li-Ion rechargeable batteries
  • Included accessories: spare O-rings, lanyard
  • Runs on: 1x AAA (Alkaline/NiMh/Li-ion) (Batteries NOT included)
  • Output mode/Runtime (Li-ion 10440*):
    • High: 300 lumens / 0.7 hr
    • Mid: 185 lumens / 4.33 hr
    • Low: 10 lumens / 53.33 hr
  • Dimensions:
    • Length: 3.5" (90mm)
    • Body Diameter: 0.47" (12mm)
    • Bezel Diameter: 0.57" (14.5mm)
  • Weight: 0.74 oz (21g) (excluding batteries)

NOTE: The TF10440 protected battery does not fit in the LM21 as indicated on the packaging. However, the unprotected 10440 does fit.
Runtime (Hours):-0.332.6641.66-
Output Modes:3+ Brightness Levels
Compatible Batteries:1 x AAA
Batteries Included:No
Included Accessories:Lanyard, Spare O-ring(s)
Flashlight Usage:Every Day Carry
Switch Location:Tailcap
Product Certifications:ANSI
Warranty:Battery Junction 30-Day Warranty, LumaPower 1 Year Warranty
Return Policy:Battery Junction Return Policy
Primary Material:Anodized Aluminum
Product Weight:0.74oz
Product Dimensions:3.54" (L) x 0.57" (Head Diameter)0.47" (Body Diameter)
Country of Origin:China
16 Reviews
63% (10)
6% (1)
25% (4)
6% (1)
0% (0)
By Philip
Portland, Oregon
This is my favorite flashlight
November 19, 2016
This is my favorite light. I've bought two. I have Maglights and LED Lenser, among others, and these are great. But this little, single AAA flashlight is a very bright pocket light that just works better and brighter than any other light in its size class. Unmentioned in the product description, the power button, as well as the edges of the glass lens cover both glow slightly in the dark which makes it easy to find if you drop it in the tent or on the trail. I also put an Ultrafire 10440 500mAh 3.6V Li-ion battery in it and it got even brighter. If I didn't fantasize about million-lumen handheld light cannons, I might be tempted to say this is the only flashlight I'll ever need.
By Carl
Austin, TX
A Lighting Marvel
September 22, 2019
I started my EDC adventure with the Avenger ( approx 50.00) I switched over to the LM21 at 1/2 the price and have been very pleased.
Over the last 8 years, I've bought no less than 20 of these lights. 10 were gifted to groomsmen at a wedding..(What a hit, I also provided 2-UltraFire 10440's and the 4.95 USB charger)
I have 2 Air Force pilots in the family who LOVE this light. Super bright and not bulky. DOES get warm on HI, but seems to take it just fine.
Per other reviews, the rubber tail SW is the definitely a miss-step in engineering.
I also could not get the TrustFire (TR10440 ) to work in this light. The LM21 will work on a standard AAA battery, but is far and away better using the UltraFire Lithium battery.
Another PLUS .... you can hold this in your mouth and use both hands and your jaw won't cramp. ( sure it looks odd, but sometimes you need 2 hands. A fatter flashlight is very uncomfortable and you look really weird - yea, don't do it. )
To control light spread, I hold it I'm my fist and select LO. Then I use my little finger to partially block the output, that way I can look at a program at the Opera without disturbing others.
And finally, I ordered 3 more of these in June of 2019 and they were B/O for 3 months.
I've already re-ordered 3 more of the 8 they have in stock.
I actually use this light hard enough to wear them out. If not the tail switch, then a broken lens, to the head going bad (which zaps a charge out of your battery in short order)
Buy this light before someone decides to stop production. You won't be disappointed .
By Marnix L.
Ripon, Ca
Great light, but...
September 13, 2018
I have purchased several of these lights as well as some other single AAA versions built by other manufacturers (O-Light, Coast, Streamlight). I like the LumaPower LM21 better than any of the other ones for the following reasons: small size, quality fabrication, 3 mode lighting, no strobe, decent pocket clip. But, a big but, each of the LumaPower LM21's, without exception, failed after a few months of use, due to the switch breaking. First the rubber cover over the actual switch is fabricated from a much too soft of rubber/silicone/whatever it is material and the cover will rip off and expose the actual plastic switch actuator (see pics). The rubber rips, not from abuse or even use, but from being carried in one's pocket, which is what the light is designed for! The actuator under the rubber cover is recessed into the flashlight body which causes it to be a pain in the rear-end to actually manipulate the switch. After a short while of the internal switch actuator being exposed due to the rubber cover ripping apart, I'm guessing, dirt, dust, lint, or something causes the switch to stop operating properly (sticks in the on or depressed mode, like a cheap pen), eventually rendering the flashlight useless with the switch either stuck on one of the on modes or off completely. It is too bad, because if this flashlight had a decent switch, and/or a decent warranty, it would be a five star light all day long. I probably will buy more of these, because I really like the light, I carry it and use it every day, but, with a bit more quality control, this light would annihilate the competition! Not sure if the manufacturers actually read these reviews, but if so, consider redesigning the light so a person could purchase additional rubber switch covers and make the flashlight so it can be disassembled a bit so a person could replace said rubber switch cover when it rips... Thank you for your time.
By Colinsdad
One of the first 10440/AAA EDCs!!!
June 20, 2017
First of all, I MUST comment on the review that said (I'm paraphrasing)" this light doesn't put out 300 lumens on a AAA". That's the EMITTER lumens with a 10440 battery, which addresses the comment that 10440s won't fit. Hmmmm....I have 3 different brands of 10440s that fit just fine. The ONLY 10440 I have that WON'T fit is a Trustfire protected cell. This light was the reason I got into EDC AAA lights - I currently own 5 10440 lights, and this one has been through some abuse and still works just fine. I really like Ricky at Lumapowers Customer Service - he'll actually respond to emails personally. Good luck finding another lighting company that does that.... go ahead, I'll wait..... yep, that's right, there's not many! I also like the knurling on the upper barrel - if you're using this as a tactical light, it helps with grip in between ther fingers. The beam pattern is quite floody, but with a decent corona and good throw for a teeny light with a teeny reflector. All in all, a reasonably priced AAA EDC that works as advertised.
  • Utterly reliable AAA EDC
  • CAN take 10440s!!
  • Just about 325 EMITTER lumens (as measured on my light sphere)
  • Nice, positive clicky switch
  • VERY tough to find a AAA 10440 capable light UNDER 100$
  • Does not tailstand
  • Some do not like the pocket clip
  • Some may not like the light spacing/ modes
By Steve
Trumbull , CT
Don't let the size fool you
July 9, 2015
Just because it's small doesn't mean it can't get the job done. The lowest setting is good if you're trying to get around in the dark without waking family members and don't want to step on the dog! The medium setting is enough light to walk the dog and on high you can see what the dog leaves behind long before you step in it. All that with a standard alkaline battery in it. You're not going to use it for search and rescue, but it packs a lot of function into a very small package.
  • Very compact , uses 1 AAA , click switch on tailcap
  • Almost too small , careful not to lose it , may want to buy 2
3 Questions & 3 Answers
from Earth asked:
June 11, 2014
Do you guys sell a 10440 rechargeable battery that will work with this flashlight? The reviews for this light say that some 10440 batteries are too short to work with this light.
1 Answer
The UltraFire 10440 and TrustFire 10440 batteries will fit and work with the Lumapower LM21
Submitted by: Customer Service on June 12, 2014

from Fresno, Ca. asked:
June 7, 2014
Does this flashlight have memory mode or does always start on low mode from off?
1 Answer
No, the LM21 does not feature a memory mode.
Submitted by: Customer Service on June 9, 2014

from San Antonio asked:
April 21, 2014
Is this the cool white or the neutral white XP-G2 tint?
1 Answer
This LED has a cool white tint.
Submitted by: Customer Service on April 21, 2014

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