Olight Warrior 3S Flashlight Review

Olight Warrior 3S Flashlight Review

Olight introduced the Warrior 3S, a flashlight using an included 21700 cell. It has dual switches and a great beam profile for tactical use!

Official Specs and Features

Here’s a link to the Olight Warrior 3S flashlight product page.


It seems that there are just two versions.  The black version, as seen here, and a gunmetal grey version.


Both versions are on sale right now, down to $87.47 from the MSRP of around $130.  Please use my Shareasale link to navigate to the sale page and price!

Short Review

The Olight Warrior 3S flashlight is honestly not all that much different from the M2R pro.  Well, I happen to love my two M2R Pro’s…  I have orange and the patriot edition. These two Olights have probably the top 3 temperatures and tints of any Olights I own!  Obviously, the S3 is an iteration of the Warrior 3, too, which performed very well.  Functionally the Olight Warrior 3S is the same, I think.  It’s a great size and using it is great, too.  The addition of the indicators around the e-switch is welcome and consistent with other Olights.

Long Review

The Big Table

Olight Warrior 3S Flashlight
Emitter: “High-Performance Cool White LED”
Price in USD at publication time: $87.47
Cell: 1×21700
Turbo Runtime Graph High Runtime Graph
LVP? Yes
Switch Type: Both
Quiescent Current (mA): ?
On-Board Charging? Yes
Charge Port Type: Proprietary Magnetic
Charge Graph
Power off Charge Port with cell: all modes
without cell: no modes
Claimed Lumens (lm) 2300
Measured Lumens (at 30s) 2273 (98.8% of claim)^
Candela per Lumen 9.9
Claimed Throw (m) 300
Candela (Calculated) in cd (at 30s) 764lux @ 5.939m = 26948cd
Throw (Calculated) (m) 328.3 (109.4% of claim)^
Claimed CCT Cool White
Measured CCT Range (K) 6000-6900 Kelvin
Item provided for review by: Olight
All my Olight 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

Olight warrior 3S flashlight what's included

  • Olight Warrior 3S flashlight
  • Olight 5000mAh Proprietary 21700
  • Nylon Carry Pouch
  • Charge cable (USB to proprietary magnetic)
  • Manual

Package and Manual

Olight warrior 3S flashlight box

Olight warrior 3S flashlight box

Olight warrior 3S flashlight box


Build Quality and Disassembly

Olight warrior 3S flashlight

There’s not really all that much updated on this Warrior 3S from the M2R Pro or Warrior 3.  As I said, I really like that model quite a bit, so I’m in line to like the Warrior 3S quite a bit, too.  I believe the main (maybe even “the only”) difference is that the Warrior 3S adds the proximity sensor.  (Maybe that’s what the “S” stands for!  I don’t believe Olight says.)

We still have the fairly standard tailcap setup here from Olight. The threads are so smooth, too.  Just over 6 full turns are required for tightening the tailcap – quite long threads.

Olight warrior 3S flashlight tailcap off

Olight warrior 3S flashlight tailcap contacts

Olight warrior 3S flashlight tailcap spring

Both the head and tail have springs – that button on the tailcap is springy.  Also, note the bit on the head end that makes the proprietary cell work.  The spring is for positive contact, and the ring around it is for the negative contact on the cell.

Olight warrior 3S flashlight positive contacts

Size and Comps

Weight (g / oz) 176g/6.21oz
Length (mm / in) 139/5.47
Body Diameter (mm / in) 29.5/1.16

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).

Olight warrior 3S 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.

Olight warrior 3S flashlight beside torchlab boss 35

Here’s the Warrior 3S between a couple of M2R Pro Olights.

Retention and Carry

First off I’ll mention the pocket clip.  Not only does it fit on the head or tail end of the light, it’s also a “two-way” friction fit clip.  The clip is long and well suited for this light.

Olight warrior 3S flashlight pocket clip

Olight warrior 3S flashlight pocket clip

Clip hug! There’s a place where you can attach the clip on the tail end, too.

Olight warrior 3S flashlight pocket clip hug

There’s a nylon pouch too, which is quite nice.  Both ends have a drainage hole but do not offer access to the light itself.  The pouch opens not with velcro, but with a little quick release.

Olight warrior 3S flashlight holster

Still probably the highest quality nylon pouch I’ve seen with a light.

Olight warrior 3S flashlight holster

The Olight Warrior 3S flashlight does not ship with a lanyard.

Power and Runtime

The Olight Warrior 3S flashlight is powered by a proprietary 21700 cell.  It’s proprietary in that both positive and negative terminals are exposed on the positive end of the cell.  It will not be charged in a bay-type charger.  Also, traditional 21700 cells will not work in the light, and can’t be charged by the light.

Olight warrior 3S flashlight included 21700 cell

Olight warrior 3S flashlight included 21700 cell

The cell goes into the light in the “normal” way – positive end toward the head.

Olight warrior 3S flashlight included 21700 cell installed

Here are three runtimes.  The three highest outputs.  Turbo steps down completely in under 2 minutes, but it takes over 1 minute to begin the dramatic decline.  Once it’s stepped down, the output is exceptionally stable at around 800 lumens (as claimed).  A final stepdown to around 250 lumens happens at ~150 minutes.  These are timed step-downs, per the manual.

The output on High looks about like the output on Turbo, aside from the first blip of actual Turbo output.  The duration overall is about the same.

Medium is even more remarkably stable than the above two.


As mentioned, the M2R Pro Warrior has on-board charging via a USB to a magnetic connector.

Olight warrior 3S flashlight mcc charger

The name of this one is the MCC 1A/1.5A/2A, noteworthy since Olight makes a number of these charge bases.

Olight warrior 3S flashlight on mcc charger

The light will stand while on the charge base thanks to the tripod contact points seen below.

Olight warrior 3S flashlight charge tailcap

Here’s a charge test – the charge rate goes up to over 2A and takes around 4 hours.

Modes and Currents

Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens Tailcap Amps
Turbo 2300/800/250 2.5m/160m/39m 2273 7.15
High 800/250 166m/39m 805 1.51
Med 200 13h 205 0.33
Low 15 130h 17.4 0.03
Moon 1 55d 0.9 0.00

Pulse Width Modulation

There’s no PWM on any mode.

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

There are two switches on the Olight Warrior 3S flashlight.  First is the metal tail switch which also is used in charging.

Olight warrior 3S flashlight tailcap

Olight warrior 3S flashlight tripod tailcap

love the two-stage switch on these 21700 lights.  It’s less perfect on the smaller 18650 versions BUT that doesn’t stop me from wanting it in an 18350 format.  I really love it.

Next is the side e-switch.

Olight warrior 3S flashlight e-switch

This e-switch on the side of the head is flat and pleasantly large.  On both sides of the switch are four green LEDs.  The right side indicates the cell charge level (below seen as four green spots in every photo).  The four on the left indicate which output level is selected.

Here’s a UI table!

State Action Result
Off Click Side Switch On (Mode Memory; Moonlight can be memorized but Turbo can not)
Off Hold Side Switch Moon
Off Double Click Side Switch Turbo
Any Triple Click Side Switch Strobe
On Click Side Switch Off
On Hold Side Switch Mode Advance (L>M>H) (Moon and Turbo are excluded from the cycle)
Turbo Double Click Side Switch Return to previous mode (High and Medium both return to Medium)
Off Long Hold Side Switch Lockout (Technically “Moon then lockout”)
Lockout Click Side Switch Indicator around Side Switch blink red for 2s to indicate lockout
Lockout Hold Side Switch Unlock to Moonlight
Any Hold (“half-press”) Tail Switch Medium (in Config 1, default)
Turbo (in Config 2)
Any Click Tail Switch Turbo (in Config 1)
Strobe (in Config 2)
Off Hold Tail Switch, Click Side Switch Switch between Config 1 and 2 (there is no confirmation. You can differentiate by actuating the tail switch and observing the mode.)
Within 5 seconds after proximity sensor stepdown Double click Side Switch Proximity sensor is disabled until the light is turned off.

One huge upgrade that Olight has been making (and is included in the Warrior 3S) is that the proximity sensor can be disabled!  Here’s how.  With the light on, cause the proximity sensor to activate.  Within 5 seconds from the light stepping down, double click.  The sensor is now disabled for this session. Double clicking will of course enter Turbo output, but you can cycle the modes and the proximity sensor will still be disabled. Turning the light off resets the proximity sensor!

LED and Beam

Olight carefully doesn’t mention what emitter is used in the Warrior 3S flashlight.  Whatever is used has no dome, so throw should be good.

Olight warrior 3S flashlight emitter

Also, the Olight Warrior 3S flashlight uses a TIR, which further accentuates the already-throwy emitter profile.

Olight warrior 3S flashlight TIR

Olight warrior 3S flashlight emitter on

LED Color Report (CRI and CCT)

Here’s a CRI report for all modes, after an emitter warmup.  What can we say about this?  No surprise that turbo turns cooler in the Kelvin range.  Another thing we can say is that it’s decidedly low CRI (around 70).  And the third important point is “how are the reds” – the very negative R9 tells us this.  And a final point is the Duv being positive (and really a “not small” positive number) indicates there’s enough green here that you’ll probably notice.


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!


What I like

  • Good build quality
  • Fantastic beam profile
  • Great dual switch interface
  • Proximity sensor can be disabled
  • The new “Fuel Gauge” trickling down from bigger lights to this one – a big positive
  • Flat e-switch.  This sounds minor, but it’s very pleasant.

What I don’t like

  • Proprietary charging
  • Customized 21700
  • Cool white emitter


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