Thrunite TT10 Flashlight Review

Here’s Thrunite’s newest entry into the flashlight world.  It’s a 21700 light, with three switches.  I happen to love 21700 sized lights, and this one has some very nice features.  Let’s see how it tests!

Official Specs and Features

Here’s a link to the official product page.


There’s only one body, as with most Thrunites, and also as with most Thrunites, there’s both NW and CW options.


The current price is $109.95 $99.95 on amazon (referral link).

Short Review

This is a feature rich light, with the only real downfall being that the output doesn’t seem to measure up to specification.  Otherwise, everything about the light is good, if it fits your application.  Direct access to Turbo and Strobe could be very useful for some.

Long Review

The Big Table

Thrunite TT10
Emitter: Cree XHP70.2 (“70B” CW)
Price in USD at publication time: $99.95 on amazon (referral link)
Cell: 1×21700
Turbo Runtime High Runtime
LVP? Yes, ~3V
Switch Type: Both
Quiescent Current (A): ?
On-Board Charging? Yes
Power off Charge Port with no Cell? No. With cell, 2 modes.
Claimed Lumens (lm) 3700
Measured Lumens (at 30s) 2551 (68.9% of claim)*
Claimed Throw (m) 268
Candela (Calculated) in cd (at 30s) 570lux @ 5.25m = 15711cd
Throw (Calculated) (m) 250.7 (93.5% of claim)*
All my Thrunite 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

  • Thrunite TT10 Flashlight
  • Thrunite 5000mAh 21700
  • Nylon pouch
  • Charge cable (USB to micro-USB)
  • Spare o-rings (2)
  • Small split ring
  • Spare charge port cover
  • Spare tail switch cover
  • Lanyard
  • Manual and papers

Package and Manual

Standard Thrunite box.

And standard Thrunite manual.

Build Quality and Disassembly

The TT10 is well built.  Nothing to complain about at all.

The design on the cell tube doesn’t provide grip like knurling does, but it’s fairly adequate.

The tailcap has a thick double spring.  Also note how much is depicted in the picture.  The tailswitch is a dual electronic switch.  Because of this, you’ll note that the cell tube has an inner sleeve.  The threads on the tailcap are unanodized, so you might be tempted to think that the light can’t be mechanically locked out.  But when the tailcap loses contact with that inner spring, the tailswitches stop doing anything.  The side switch however, still works!  So the light can’t actually be mechanically locked out…. confusing a little?

The head also has a thick spring.

The bezel unscrews easily, but the lens and reflector don’t fall out easily.

Size and Comps

Weight: 190.5g with battery
Dimensions: 137.5mm * 35mm * 27.5mm

I measure the following: 138.63mm x 32.97mm x 8.22mm

This isn’t really a small light, and I found it too big to comfortably carry even where I normally carry long lights like the Convoy S2+.  Mainly because the bezel showed too much love to my jeans, and the head is a little big for that carry.

Retention and Carry

My opinion is that the main carry for this light will be the nylon pouch.  It’s a good one, and the light will fit in either orientation.

The other option is the lanyard, which attaches through holes in the tailcap.  There are two holes on both sides of the tailcap.  The light will semi-reluctantly tail stand despite the cap being the way it is.

There is no pocket clip, nor is there any good place to connect a pocket clip.

Power and Runtime

The TT10 is powered by a lithium ion cell, and one is included.  It’s a 5000mAh 21700, with a typical Thrunite wrapper.

I performed two runtimes.  Turbo first, where we see a huge stepdown at around 2 minutes.  Also note that even at startup, output doesn’t measure to spec of 3700 lumens.  I can’t really account for this 30% difference, especially since Thrunite includes a cell with the light.

High runtime is surprisingly shorter than the Turbo, but that’s explained by output being just a little bit higher for a good bit longer.  On high, the output does meet the specification.

Both tests did indicate the light has LVP.

The TT10 also has on-board charging.  This is by a micro-USB port in the head, opposite the switch.  The cover for this port is very secure.

Thrunite includes a cable, too.

The charging looks a little funny, but is very consistent, and also quite fast – over 2A to the cell in both tests, and for a prolonged time (almost 2 hours).

During charging, the indicating switch is red.  When charged, the switch is blue.  If flashing purple, something’s up with charging.


Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens
Turbo 3800/1100 2m/150m 2511/1320
High 1750/1100 3m/155m 1797/1500
Medium 300 8.5h
Low 28 68h
Firefly 0.5 57d

I haven’t included a current measure for any modes; the tailcap e-switch complicates all of that too much.  I’ll fill this chart in later tonight. 😀


No real PWM for any mode.

Just for fun though (and really because it is a specifically measurable thing), I’m adding the Strobe frequency view below:

For reference, here’s a baseline shot, with all the room lights off and almost nothing hitting the sensor.  And here’s the worst PWM light I have ever owned.  Also one of the very first lights I ordered directly from China!

User Interface and Operation

There are three switches on the TT10.  First are the two switches on the tailcap.  One feels like a clicky mechanical, and the feels like a paddle switch.

Last is the e-switch on the head, which also has an indicator function.

The UI is not overly complicated by all these switches.  More or less this light should be thought of as a side-switch light, but with discreet buttons for easy access to Turbo (big button on tail) and Strobe (smaller button on tail).  Either tail switch overrides any other action or state of the light except Lockout.

Here’s a UI table!

State Action Result
Any Click Power Switch (PS) On (Turbo, steady)
Any Press PS Momentary Turbo (when released, light goes to off no matter previous state)
Any Click Tail Switch (TS) Momentary Strobe (when released, light goes to off no matter previous state)
Off Hold Side Switch (SS) Firefly
Off Click SS On (Mode Memory, excluding Firefly, Turbo, and Strobe)
Firefly Hold SS* Lockout (Locks out all modes)**
Firefly Click SS Switch indicates Red for Lockout
Firefly Click TS or PS No action (not even red indicator on SS)
On Click SS Off
On (LMH) Hold SS Mode Advance (LMH only)
Any Click SS 2x Turbo
Lockout Hold SS Unlock
Any Click SS 3x Strobe

* Note that this means from Firefly, other non Turbo/Strobes can’t be accessed directly
** Lockout isn’t signified in any way – just hold til you think it’s locked out.  That’s probably long enough.

LED and Beam

The emitter here is a Cree XHP70.2, in cool white.  Also available is NW, and I’d recommend that one generally, unless you must have M A X  L U M E N S.

The reflector is fairly deep, orange peel, and there’s a white centering ring around the LED.

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

Tint vs BLF-348 (Killzone 219b version)

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

Random Comparisons and Competitive Options….

Here’s a link to a relevantly filtered page on  I use that site a lot!  There are a few compelling competitors, a couple of which have more throw than the TT10.  Still the TT10 is a good entry in the category, with the easy access to Turbo and Strobe.


What I like

  • Very fast charging (especially over regular micro-USB)
  • All the switches
  • Full package including cell

What I don’t like

  • Didn’t hit output numbers
  • Price


  • This light was provided by Thrunite for review. I was not paid to write this review.
  • This content originally appeared at  Please visit there for the best experience!
  • Whether or not I have a coupon for this light, I do have a bunch of coupons!!  Have a look at my spreadsheet for BangGood and GearBest coupons. Please subscribe and get notifications when the sheet is edited!!

Author: zeroair

2 thoughts on “Thrunite TT10 Flashlight Review

    1. No, something about the circuit of the TT10 didn’t allow it to work the way I test.

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