[Review]UltraTac K18 v2017 (XP-G2 S4, 1x AAA / 1x 10440)

7 posts / 0 new
Last post
UPz
UPz's picture
Offline
Last seen: 3 weeks 1 day ago
Joined: 01/09/2011 - 08:11
Posts: 512
Location: Barcelona
[Review]UltraTac K18 v2017 (XP-G2 S4, 1x AAA / 1x 10440)

ULTRATAC K18 v2017
LED: CREE XP-G2 S4 CW
Battery: 1x AAA / 1× 10440
Modes: 3 (L, M, H)
Switch: Digital, head.
Date: May 2017
Links:
Ultratac · RdL · ForoLinternas

INTRODUCTION
Ultratac has recently released an update of its K18 model, which I reviewed some time ago and in recent years has achieved some popularity thanks to its digital switch located at the head of the flashlight, an almost unique feature in the segment AAA.

The new K18 is surnamed v2017 and comes presented in a very similar way as we saw in the previous version.

Inside an elegant telescopic carton previously clutched in full color we find the flashlight perfectly housed in the usual cuts of synthetic foam.

Accompanying the flashlight we will find a mini silicone diffuser (optional in the previous model), a pair of spare gaskets, an alkaline AAA battery hidden under the flashlight and a small instruction manual together with a warranty card.

EXTERNAL FINISH
Outwardly the flashlight is very similar to its previous version, with only a couple of really important changes in its construction.


The overall design lines remain intact with excellent machining and a great matte black anodized, free of any imperfection or color difference.

If we compare it directly with its previous version we will see that the first thing that catches our attention is the redesign of the tail area, where that rounded part with a huge hook becomes perfectly flat with a metallic hook on the side.

The side hitch is foldable, so that it can be deployed to facilitate the hitch, and be folded if the tailstand function is required, something that in conjunction with the mini silicone diffuser is extremely useful.

The next most striking change is that the button coating is replaced: from the typical black silicone it now becomes stainless steel. The internal clicky has been replaced for a way more silent one too.

The LED is now an XP-G2 S4, somewhat higher in performance than the previous model.

The optics have the same composition as the previous version, with the emitter well centered after a rough reflector, and a glass lens with AR treatment.

The K18 v2017 now has more interior space to allow the use of 10440 protected batteries, which means that part of the space gained in the redesign of the tail is lost, obtaining a total length similar to the previous version.

USER INTERFACE
The redesign has also slightly touched electronics, with some new features implemented. If in the previous version we needed a steel or brass model to have electronic locking (because the anodized aluminum models could be blocked by thread block), the new K18 v2017 already incorporates it also in the base version of anodized aluminum. We also have now a low voltage warning for li-ion battery.

  • On and off: To turn on the flashlight, we must press the digital switch for half a second, and repeat the operation if we want to turn off the flashlight.
  • Changing modes: With the flashlight on, simply click on the digital switch to change modes, alternating between the three intensities in ascending order: L-> M-> H
  • Memory: The K18 features mode memory function. This is remembering the last mode we used prior to its shutdown, and turns on it on its next power up. The memory is maintained even if, when the flashlight is off, we remove the battery.
  • Strobe Mode: Like other small AAA flashlights, we have a hidden stroboscopic mode, which we can access if we make a quick double click with the flashlight on.
  • Block-out: As I mentioned, the new K18 v2017 can be electronically locked to prevent accidental activation. Simply make a double click from the off to lock and unlock it. Of course, we can continue blocking the K18 v2017 by a slight unscrewing of his head.
  • Low voltage warning: When using a 10440 the new K18 v2017 will warn us when the battery voltage is too low, going to low mode and performing a triple blink every approximately 5 seconds.


(All measurements are taken following the ANSI NEMA FL1 procedure, taking as value the highest point of the reading between the second 30 and 120 after activation)
In general, the specification for the distribution of modes is hardly modified as seen in the previous version, although thanks to the XP-G2 of greater bin the figures grow slightly in the readings.

PERFORMANCE

Surprisingly the new K18 v2017 gets an initial output very similar to that obtained with the previous version, although now the flashlight is able to reduce the initial drop to obtain a significantly higher output throughout its execution time, gaining significantly in efficiency, although it is also true that due to this the battery is discharged slightly before. Test with 10440 will come later.

BEAM PROFILE
The projection has not changed in anything that what the previous version offers. Read more about it in the review of the previous version.

The tint is good enough for being a high bin CREE, with a very slight yellowish tone in the area surrounding the hotspot.

PERSONAL CONCLUSION
The K18 was a flashlight that brought something new to the AAA segment, where twisties predominate, and little by little they have been shed some clicky … but a digital switch located on the head of the flashlight was an authentic novelty.

As a result of this success, the K18 has been popularized and its stainless steel version has even been chosen by users of ForoLinternas.com as the basis for its limited edition flashlight, personalized with the forum favicon.


Lumintop Tool Ti · Ultratac K18 v2017 · Lumintop Tool Cu · Ultratac A5

Negative aspects: One of the most interesting improvements has been somewhat masked by the redesign of the space for the battery, now much more generous to accommodate 10440 protected batteries, but significantly lengthening the flashlight. Personally I would have preferred that the flashlight had maintained its original dimensions but with the new tail design.

Positive aspects: The new base of the tail allows the flashlight to be able to pose on this without problems, which added to the now included series of silicone diffuser make the K18 v2017 has taken an important step forward. The Li-ion 10440 battery compatibility has also been improved with the new low-voltage warning function. Also now the flashlight can also be blocked electronically.

Edited by: UPz on 05/14/2017 - 10:51
JetskiMark
JetskiMark's picture
Offline
Last seen: 1 month 1 week ago
Joined: 02/19/2013 - 15:14
Posts: 3
Location: Near Los Angeles, California

Thank you for the review.

I have two first generation stainless steel K18s. I really like the electronic lock out. It’s nice to see that on the aluminum version now.

I also like the inclusion of a low voltage warning when using a 10440. I only use mine with unprotected 10440s and low voltage is always a concern.

It looks like the MODE button is not aligned properly in your example.

It would be nice to include the first generation K18 next to the v2017 in the pictures with the different lights side by side.

Do you know if a stainless steel v2017 is going to be available? I would definitely buy one.

Tinderbox UK
Tinderbox UK's picture
Offline
Last seen: 11 hours 10 min ago
Joined: 12/26/2016 - 06:17
Posts: 243
Location: England, United Kingdom

Great review, I would like to see an Titanium version as it will be quite a bit lighter than the Stainless Steel version and look virtually same, see a photo of the Steel and Titanium Thrunight Ti and TiS

 

dfdsdfs

John.

SkyRC MC3000 – Maha C9000 – LaCrosse BC-900 – Floureon BT-C3100 V2.2 – Accumanger 10 and 20 -Thunder AC6 LiitoKala Lii-100 – Cozypony 24W Solar Panel – Soshine H4 – Soshine T2 – Soshine E4S

ManWithoutShadow
ManWithoutShadow's picture
Offline
Last seen: 4 hours 34 min ago
Joined: 02/20/2017 - 18:17
Posts: 29
Location: Wisconsin

I bought mine from Amazon. It had a package with the 10440 battery and a tail cap usb charger (along with the other accessories). 30$/prime shipping. Awesome light and very bright with the 10440.

When I'm spending money foolishly, I like to do it wisely...

TheBo
TheBo's picture
Online
Last seen: 6 min 14 sec ago
Joined: 01/07/2015 - 14:52
Posts: 566
Location: OBLIVION, ITALY

Seems they have improved a lot of things. Also the tailstanding ...which is major for me.

 

 

*************EDIT *******************  

 

@UPz would you please compare in detail tint between this and the old 2016 version?

Rufusbduck wrote:
Getting discouraged is normal but doesn't finish the job.
CRX
CRX's picture
Offline
Last seen: 2 hours 6 min ago
Joined: 04/02/2013 - 15:27
Posts: 1942
Location: Scotland

Nice upgrades, especially the LVP.

Thanks for showing Thumbs Up

fedcas
fedcas's picture
Offline
Last seen: 19 hours 5 min ago
Joined: 04/26/2013 - 19:42
Posts: 163
Location: Italy

great review, thanks Wink were the old models available in NW version maybe?