Today I have in for review a single 18650 thrower. This one’s unusual though. I have never seen the emitter before (an Osram), and this thing really throws.

Official Specs and Features

Here’s a link to the official product page.

Versions

There is only one version.

Price and Coupon

The T11 is going for just over $100 right now, and can be purchased on amazon. I’ve just joined amazon affiliates – that’s my first amazon affiliate link. I have no idea how it works, but I’ll receive a little if you purchase from that link. I’d appreciate it greatly!

Short Review

I measure the throw on this light much higher than rated, and it’s already rated very high. This thing throws ridiculously. Just crazy throw from a single 18650 light.

Long Review

The Big Table

* 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

Weltool T11 Demon Carver Flashlight

Yellow lens cover

Spare o-ring

Manual and paperwork

Package and Manual

The T11 ships in a cardboard box.

The manual is fine.

Build Quality and Disassembly

Weltool is one of those brands I see a lot of on Facebook…. That…. is usually not a good sign for most lights. So to be honest, I wasn’t expecting much out of this light.

But I stand corrected. This light is very well built, and has some nice appointments that I didn’t foresee.

The quality in hand is high – the light doesn’t feel cheap (and it shouldn’t, it’s over $100).

The tailcap in particular was one of those things I thought would be poor quality. It’s not. The size and knurling make it very easy to unscrew, and it’s smart to have the knurling here. Also the larger diameter of the tailcap isn’t a negative – this isn’t a light you’ll pocket anyway.

The body has the same knurling, and it’s worth mentioning that the knurling (diamond pattern, my favorite) is very consistent, grippy, and also not sharp in the least.

The head has some cooling fins

The threads are square cut anodized, and well lubed. This allows mechanical lockout past what the mechanical switch offers.

Both the head and tail have springs. The tailcap can be disassembled easily, since the parts are held in with an aluminum retaining ring.

I was not able to remove the head from the body, or the bezel from the head.

The body has marks on the outside showing proper cell orientation. As usual the positive end goes toward the head.

Also included is this slip fit lens cover. This turns the output yellow, which I presume is useful in hunting some wild animals.

The fit of this cover is very good, and it serves nicely as a protective cover for the lens.

The cover flips open, for easy switching between yellow and white output.

And when I say “flips open” I mean it. It’s like an automatic knife. Once you get this cover up past a certain point, it flings open.

Size and Comps

Officially

Dimensions: 53mm (Head Dia.) x 25.4mm (Body Dia.) x 163mm (Length)

Weight: 249.5±0.5 (w/o battery)

This is a good size for a handheld thrower.

Retention and Carry

Nothing is included for carry of the T11. No lanyard (and no place to attach one). No pouch. No pocket or belt clip, though there seems to be room on the tail end of the cell tube for a very thin friction fit clip.

Basically roll your own carry method for this light.

Power and Runtime

The T11 is powered by a single 18650 cell. With both ends having springs, any type of 18650 will work. The power requirements for this emitter aren’t that great, so really any 18650 would be fine in this light. I’ve tested here with a low capacity, high current Vapcell G20, but a high capacity lower current cell would be a good solution, too.

Here’s a runtime on High. I didn’t hit the output specs, but as throwy as this light is, I chalk that up to my PVC tube not responding well to such throw. Either way I’m not sweating the output, because the light hits the throw specs (and throw is much more important on this light).

Note a couple of probably surprising things. First, the output after an initial drop is very well regulated. Secondly, the light does have LVP. The stepdown is not good, but the regulated output for almost an hour is.

Output on Low is very flat, and extremely well regulated. Worth noting here is that I measured throw on Low to be 611m. So throwing 611m for over 2 hours – that’s probably some kind of record, and certainly for this class light.

At around 3V, the main (aka only) emitter flashes a voltage warning. At around 2.5V, the light is electrically off.

You might wonder how the yellow cover affects throw?

Low (with yellow): 524m

High (with yellow): 777m

So the cover brings throw down, sure, but 524/777m is still very throwy for this class.

Modes and Currents

Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens Tailcap Amps High 743 1h40m 557 2.53 Low 297 3h35m 250 0.72

PWM

No PWM on either mode.

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’s a single switch on the T11. It’s a mechanical forward clicky. The switch is very proud, which means easy access with or without gloves but also no tailstanding.

Here’s a UI table!

State Action Result Off Click Low Off Half Press Momentary On Click Off Low Click 2x High High Click 2x Double blink Off Tap Click High Off Tap Tap Click Double blink

LED and Beam

As far as I can tell none of the product documentation indicates what emitter is in this light. I contacted the sender, and he said it’s an Osram Ostar Projection Compact. I know nothing about this emitter, including if this is actually the spec sheet for it. I think this one is sometimes actually used in projectors (hence the name). So my best guess is this: OSRAM OSTAR® Projection Cube, LCG H9RM.

Ultimately the point is that the emitter is very tiny which helps make tons of throw. And this light has the tightest pencil thin beam I have ever seen.

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

Tint vs BLF-348 (Killzone 219b version)

Hard to show this since even Low is high enough to wash out the comparison. I find the tint to be very acceptable though. I’d put it in the 5500K range.

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

Conclusion

What I like

Throw is incredible

Seriously the throw

Very good build quality

Huge fan of the knurling

The yellow lens cover is well made (though not useful for me personally)

What I don’t like

No pouch or lanyard or belt clip (just pick one of the options and include it)

I would like more than two steady modes, and one of those should be very low.

“Demon Carver”

Notes

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

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