ZeroAir Reviews: Thrunite Ti4 (AAAx2, Cree XP-G2, 252 lumen Penlight)

Preface

I’ve never really had a penlight before, so I was interested in giving this one a go.  I also haven’t really done an XP-G2 light in a while to my recollection, so this light should be a good departure.  Thrunite provided this Ti4 for review – thanks Thrunite!


Link to Official Specs and Features

Versions

As with most Thrunite lights I’ve seen lately, there is a cool white (CW) and (thankfully!) a neutral white (NW) version.   The one I have is the CW.

MSRP

Listed and available on Thrunite’s site for $19.99.


Short Review

Disappears in a pocket, and has a nice clicky action (much like a Bic Click pen, the only style pen I use!)  I’m quite pleased with this light, and find it to be a good value.

Long Review

What’s Included

  • Thrunite Ti4
  • Spare O-rings (2)
  • Manual

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Pictures

Here’s an album of glamour shots, and here’s a runtime.  Here are some beamshots.

Package and Manual

Straight up typical Thrunite package, which I’m very pleased about.  It’s a cardboard box, no plastic on the outer.  The light is held in place by a bit of foam, and is enclosed in a soft plastic bag.  This is a great package.  Maybe the bag around the light is unnecessary, but I really like these Thrunite packages.

The manual is thorough and full featured, including UI and Specs and warranty and warnings and the whole bit.  It’s also nicely folded (something that really gets my attention), such that when it’s open to the language of your choice, it’s actually already creased to make easy viewing.  This might sound minor, but it’s something that’s been done right, and I appreciate it.

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Build Quality and Disassembly

The Ti4 is nicely built.  It feels robust.  Unusually, this light has no knurling – probably a normal thing for penlights (this is my first penlight!).

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There’s not too much to disassemble however.  That said, an emitter swap is possible (because other users here have reported doing it!)

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The cell tube is directional, and the threads have plenty of lube.

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Driver shot:

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Size

This is a long light.  It’s a 2 cell AAA light, and on par for what a light of that cell configuration would be, but that just makes it long!  Longer than a Convoy S2+ (or a BOSS 70!).  It’s thin, too.  It’s… typical penlight?

Here are some pics for you to see for yourself.

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Retention

There is but one option for retention on this Ti4:  The installed pocket clip.  The clip can be removed, but – as it’s the type that has a ring around the threads of the tail – there will be a small gap.  The clip is also directional – there’s a detent that requires specific orientation so that everything will screw together nicely.

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Power

As mentioned, this light works with two AAA cells.  I use and all my testing is done with Eneloop AAA cells.

Two AAA cross don’t provide a lot of Ah, so we wouldn’t expect tons of runtime with this penlight. And that’s what we get really… Convenient light but not for very long.  Here is a runtime graph, on hey highest setting.

runtime.png

User Interface and Operation

There’s a single metal reverse clicky tailswitch.  It’s very proud.

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So proud that I’ve accidentally activated this light a number of times (two, at the very least, and I think once when I had AA and left the light on overnight!).

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The UI is fairly simple:

  • A single (full) click will turn the light on.
  • When the light is on, half press the tail switch to cycle through Firefly, Low, High, Firefly, Low, High, and Strobe.
  • When the light is on, quick double click (within 1 second) the tail switch to cycle through Firefly, Low, High, Firefly, Low, High, and Strobe.
  • If the second click is after 1 second but less than 10 seconds, the light will memorize the last mode. If it is after 10 seconds, the light will start from Firefly mode again.

All that said, I found the UI to be different enough from what I’m used to that it took some practice to be able to get the modes I expected from off.  I was an also not a fan of the means by which stove is accessed- I found myself accidentally ending at strobe a number of times.

LED and Beam

There’s a Cree XP-G2 in this Thrunite.

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The reflector is a tiny, shallow orange peel reflector.   That smallish reflector makes for a quite broad beam, with little throw and almost no hotspot. A very good beam for what’s probably the normal use case for this light.

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The mode spacing seems fine, and low is actually pretty low.

Beamshots, Runtime, and Lux Measurements

Brand Thrunite
Model Ti4
Emitter Cree XP-G2
Emitter Notes
Cell AAAx2
Runtime AAAx2
Beamshots [0.3″, f/8, ISO 100, 5000k] AAAx2
Claimed Lumens (lm) 252
Lux (Measured) 175
At (m) 2.158
Candela (Calculated) in cd 814.97
Throw (Calculated) (m) 57.10
Throw (Claimed) (m) 67

Random Comparisons and Competitive Options….

There are a couple of very similar lights worth mentioning.  First, and probably most similar is the Olight O’Pen.  That’s an older light and maybe not available now, but the clicky bits look almost just like what’s on this Thrunite here.  Just an interesting tidbit really, nothing more.

Another similar light is the EagTac PN20a2, which not only has a tactical interface and clicky, it also has a selector ring.

And one more, the Nitecore MT06MD, which I’ll have a review copy of soon enough, compares physically but has a Nichia 219b.

Conclusion

What I like

  • Build quality is fine
  • It’s a very pen-like penlight
  • The clicky is very positive and rewarding
  • The beam profile is very good for this class light
  • NW and CW are both available

What I don’t like

  • The clicky is to fun to click
  • Short runtimes
  • Accidental activation had been a problem

Buying

If you’re interested in purchasing this light, have a look on Thrunite’s Amazon page. Thrunite offers a two-years free replacement with new one if light defects with normal use. Lights just need to send the defective light to ThruNite warehouse.


Up Next

I’m still working on the TorchLAB BOSS and in the meantime I have those four knives (which will probably get done soon).

Notes

  • This light was provided by Thrunite for review. I was not paid to write this review.
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