[Review] ULTRATAC K18 (XP-G2 S2, 1x AAA / 1x 10440)

Both runtime comparision charts & wallshots include D25AAA (XP-G2 version) references. Let me know if you need anything else. :wink:

Thanks to you for reading and also for the compliments. :beer:

You’ll love this tiny light. Once you’re done reviewing, please share a link here so we can follow yours too.
Regards!

Emitter swap looks like easy job:

Note the two holes in the brass pill around 12:30h & 6:30h. I haven’t unscrewed it, but I can tell from my experience that the stock emitter tint is very good. It’s cool white, but far from the greenish I’ve found in all my i3S.

Thanks for your reply!

Would be nice if the diffuser also fit over the tailcap for tailcap standing.

Good review, it would be perfect, if you could disassemble the light completely and check if the following statement is true

“Direct Thermal Patch (DTP) Copper MCPCB: Direct Thermal Path Copper MCPCB provide excellent heat dissipation to ensure the best light performance.”

Thanks for the review. Very comprehensive. I personally feel the AAA format is overcrowded and that the AA form factor does not get too much love from manufacturers. At $21.95, I feel its a hard sell with so many options available.

When I first saw it I was impressed by the AAA sideswitch design. But the runtime charts show how the K18 is really amazing, it is pitty it can’t tail stand.

Silly question, but how to they keep the switch cover pressed against the body to prevent water intake? Thanks for the review!!!

Very very good/quality review and very nice light! :smiley:

Great review. Good info. Nice pic’s. :slight_smile:

Thanks for all the hard work you did to create this top-notch review.

I generally do not purchase cool-white flashlights, but I still see a lot to like in this UltraTac model.

I missed this review somehow (maybe the “ultra…” put me off). :wink: Just shows you shouldn’t judge a flashlight by the name.

Thanks UPz for this - I understand a stainless steel version is also available, but I can’t find it anywhere.

I believe going gear and he equip both stock these.
I got mine in SS from hk

Does anyone know if this works with unprotected Li-mn 10440’s?

I have a couple that don’t seem to work with it.

Want to give this light a try, now some questions to you guys:

1. is the K18 working with efest 10440 (350 mAh) ? Has anybody tested this combination?

2. has the K18 some kind of overdischarge protection, if battery voltage sinks under 3V? (If not, how can i avoid damaging my battery?)

3. Has anybody found a lower price than 14,95 € ? (found here)

1. Unfortunately, it doesn’t work with flat 10440 efest. Only button top batteries.

I run my K18 with efest 10440 like this, are not flat top??

Hi AAA Maniac,
Aswers:
1: yes (I got Efest 10440 V1)
2: I don’t know
3: no

And I found an additional lockout on mine:
FROM OFF: double click - the light flashes once and stays locked out until you
DOUBLE CLICK again - two flashes and the light is operational

The electronic lock system is only in SS and brass edition because they have not the option of lock out “rotate a quarter turn of the head thread”. Have you a Aluminium version with electronic lock out?

Aaaahhhh - I see…
Mine is brass!