Review Klarus XT11GT

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daninho
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Review Klarus XT11GT
I won a Klarus XT11GT (give away) and here is a little review i made about it.

The XT11Gt is a typical tactical 1x18650 light with the famous double tailcap switch (paddle) from Klarus and a side switch. Now you see more and more manufactureres adopting this additional paddle switch in their tactical lights. The XT11GT is very similar to the XT11S model except the emitter and the length, according to the manufacturers specs its a bit longer now. I dont own the XT11S, so i can not confirm that.








The light comes in a standard red/black cardboard package



This is what you get when you buy the light, a lanyard, a holster with Klarus label, a spare o-ring, the manual and a USB to micro USB cable. You also get a 3600mah 18650 battery.


Now to the XT11GT itself, here is a 360° view of the light





Here are some closer images of the light. The machining is pretty good, they did a very good job here. Klarus use their typical battery status indicator switch here as well, i always loved that feature, its a pitty that many other manufacturers dont use indicators like that. The light comes in black, other tactical Klarus models like the XTQ1 are in grey. I usually prefer other colors instead of black like olive, desert tan, grey etc.. but thats a matter of taste. The switch can indicate the battery status in the first seconds after you switched the light on. The status is indicated in 4 different battery status levels, more on that later.

The head is glued in with blue loctite, i have no problem with that. However the grooves you can see on the head have minimal anodizing problems at the edges, you can see the silver aluminum trough, its barely noticable in real life though. Maybe this is because they use some kind of tool that fit in those grooves for tightening the head.




As you can see the surface looks really smooth, perfect laser engravings. The tactical ring is not firmly installed, you can twist it with your fingers, im not sure if that is on purpose or not. My XTQ1 have a loose ring as well. I want to mention those things and dont give a biased review here.




The light has a coated glass lens and matte grey stainless steel bezel, probably beadblasted.




The additional Klarus paddle switch next to the tailcap clicky, its a forward clicky which means momentary on is possible. The paddle is a feature i love about those tactical Klarus lights. It can be pressed easily with gloves. I will write more about it later.


Lets compare the Klarus XT11GT with other 1x 18650 tactical lights, its a rather short light despite its USB Port.



Since i cant remove the head i had to take that picture trough the battery tube. Im not sure why the head is glued but i can imagine that it would be a pain to unscrew the tailcap if the head wasnt glued in since i need some force to unscrew the tailcap. Usually i grab the head for a firm grip and unscrew the tailcap with my other hand. This would be not ideal when the head is not glued in. My XT11GT tailcap needs some force to get it tight and every mm will count here otherwise you will get some contact problems. As i arrived in the forest at night for the outdoor beamshots i thought the light is defective but the tailcap needed an extra mm to get contact.

The XT11GT has a spring in the head as well, its perfect for use with a bicycle (for example) since the battery has better contact compared to a flashlight with a single spring and vibrations dont influence the light that much.


The XT11GT uses a XHP35 HI D4 emitter with a smooth reflector while the XT11S uses a XPL High emitter, it has four brightness levels and two special modes (SOS and Strobe). According to the manufacturer the light has 2000 lumens on turbo (with the right battery), 400 lumen on high, 100 on medium and 10 at the lowest mode. The mode sequence is a loop from Turbo to low. A peak beam intensity of 40401cd is plausible, i had similar results with a luxmeter.





PWM



The light has PWM in the lower modes and there is a little high pitched buzzing going on, of course you can only hear it in a silent environment.










Here is a little color bin comparision, its cool white but i would say not as cool as a nitecore MH20 or Olight S30 for example.




I had no problems with different sized batteries or flat tops cells. As you might see, the light has an inner tube. I guess this is because of the electronical paddle switch in the tail cap.
A polarity protection is also build in.



The charging feature of the light

I used a 2 amp USB Adapter and a USB Power Monitor. The light charged with about 0.93amp as you can see. During charging the status indicator LED inside the side switch is red, when the charging process is finished it will turn green. If something is not right during charging you will get a blinking orange indicator light. I noticed that the status indicator turned green but the battery was still charging (with 0.7 amps). 40 minutes after the indicator went green the light stopped the charging process and the USB power monitor showed 0.0 amp. I left it still plugged in for 2 hours and in those 2 hours the power monitor showed a little 0.12 amp blip every 10 secs. I called it a day and removed the battery, it had 4.23V. I used the 3600mah Klarus battery, it was already 90% charged for that little test. By the way the parasitic drain of the light is a bit high with over 300 µA.





Here are the four battery status colors you will see when you switch the light on, the indicator light is only active for several seconds after you switched the light on.
Green indicator light = A full or nearly full battery
orange indicator light= i measured a battery right after the orange indicator light appeared with 3.8V
red indicator light = i measured a battery right after the red indicator kicked in with 3.5V
blinking red indicator = i measured a battery with 3.0V

I dont know the correct limits under load.







To the UI:

Now this is the complex stuff and im sure i will forget to mention something here since the light has some more features compared to other lights.
The XT11GT offers you three different operating options/methods, those are the...

 

  • tactical setting
  • outdoor setting
  • advanced outdoor setting


At default the light comes with the tactical setting, switching between those three operating modes is pretty simple and it works like a charm. When the light is off, long press the side switch for about 10 sec, a strobe mode will appear, keep pressing the side switch the whole time! While pressing the side switch you can push the paddle switch at the back to change between the 3 settings. The light will give you blink signals to indicate in which setting you are. The light flashes once for tactical setting, twice for outdoor setting and three times for the advanced tactical setting.


tactical setting/mode:
In tactical mode/setting all three switches work and the main difference compared to the outdoor setting is the instant strobe function when you keep the paddle switch pressed from on or off.
The tailcap clicky will give you instant turbo everytime you press it. You can turn the light on with the side switch or like i mentioned before with the tailcap clicky (instant turbo). You can change the brightness levels with the side switch or the paddle switch (short press), the only difference is that the paddle switch gives you only 3 brightness levels while the side switch gives you 4

The side switch is pretty similar in tactical and outdoor mode. You can lock out the light with the side switch from off when you press it longer than 5 secs and a triple click will unlock it again. You get instant low when you long press the side switch. A short press from off switches the light on in the last mode you used it (mode memory) and you can select your brightness levels with a short click as well. A double click from off or on will trigger the strobe mode, another double click SOS. A long press from on switches the light off (with mode memory), you can alternatively switch the light off with the tailcap clicky as well but you will enter turbo mode before the light can be switched off. When you switched the light on with the tailcap clicky you can not switch the light off with the side switch!

outdoor setting/mode:

The only difference between the tactical and outdoor setting ive noticed is that the paddle switch gives you instant low from off instead of strobe and you can select between 4 brightness levels with the paddle switch now, in tactical mode you have only 3 brightness levels on the paddle switch but of course 4 as well when you use the side switch for that, i know its a bit confusing. According to the Klarus website one benefit of the outdoor setting is mode memory but mode memory (side switch) works in tactical mode as well.


advanced tactical setting/mode:

In this setting the side switch is deactivated, its a very simple and reduced mode compared to the others. The tailcap clicky gives you turbo from on or off and the paddle switch will give you strobe from on or off, thats it. You cant select a brightness level in that mode.




runtime test:


The diagram looks a bit weird but this is because of the temperature sensor, the XT11GT monitors the temperature constantly and therefore adjusting the brightness all the time, you can see that in real life pretty good. Many other lights dont have a temperature sensor and those lights use a timed step down instead.














indoor beamshot





Compared to a Klarus XTQ1








outdoor shots










GIF









The XT11GT is a nice light, pretty sophisticated, the paddle switch is awesome and the overall quality is very good. Some wont like the PWM and the slightly overcharging (4.23V). Maybe only my copy does that! If Klarus can iron out those little things, especially the little overcharging it will be a hard to beat tactical light in that 1x18650 format. Feel free to ask, im sure i forgot to mention something because of all the features.
Edited by: daninho on 10/08/2016 - 14:06
The Miller
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Good review, thanks
Rugged light, me like!

Ronin42
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wow klarus got their monies worth for that giveaway.

is that what an xhp35 12v emitter looks like? wow an hour of run time out of a major boost circuit. ahh modern batteries.

also i would say that 4.23 is not over charged cells have tolerances and that just insures a full charge.

shame it jumps from 2000 to 400 lumens seems like a big jump to me, but maybe i missed somthing.

(“It’s good that most people can’t remember their previous lives. Otherwise
things would be a lot more complicated than they already are.”
Ajaan Lee Dhammadharo)

daninho
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Hi,

According to the manual its an XHP35 HI D4 emitter, the runtime test was done with the new 3600mah Klarus 18650, so it has a pretty high capacity.
I would say its slightly overcharged, i prefer the batteries charged to 4.20V or below but i rarely use the internal charging function.

That is right, according to the manufacturers data the light has 400 lumens on high in tactical mode, i was suprised as well. Its a shame that my sphere isnt working like i hoped it would but in some weeks it will be more accurate. I just need some lab tested reference lights and then i can test all that.

Do you think so? But you dont win a light like that very often.

southland
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Nice review, thanks.

daninho
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The Lux @1m with the original protected Klarus 18650 was about 40K, with the LG HG2 it was nearly 50k. So the LG HG2 give like 25% more lux, of course it will drop fast in a real life situation.

 

 This was actually not correct, it seems i have a problem with my tailcap. I tested it several times and i always measured only 27K lux with the original Klarus battery but 40K Lux with the LG HG2. I couldnt explain it until i removed the tactical ring from the light, then i measured 40K lux with the Klarus 3600mah cell as well with my new luxmeter. I never had such a problem before, i cleaned the contacts and the tightened the internal tailcap ring as well but still the same problem. I guess something is not right with my tailcap.

chadvone
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Thanks for the review. I am on the fence on this one. PWM is a big negative. SB reviewed the XT11S and didn’t notice any PWM. There ad claims constant current.

Question. If light is on any mode other than turbo , what happens if you slight press main rear switch???
Can you have momentary TURBO while in low, medium or high???

Hope my question is clear.

daninho
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I never had the XT11S, i test it with the slowmotion funcrion of the smartphone camera.
Ok, thats probably not the answer you want to hear but it the light will go out when doing so. when you are on lets say low mode and slighty press the tailcap clicky you will get momentary turbo but the light will go out as soon as you release the tailcap clicky.

chadvone
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Have you heard of anyone else having pwm on low modes?

Maybe you got a bad one.

daninho
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Yes, german reviewers in the german flashlight forum discovered it as well. I guess you already heard of the new version of this light, maybe this is without PWM if you are sensitive for PWM.

chadvone
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Well I ordered one. Hope I get an improved version.

daninho
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No, you have to order the new version, you wont get the new version if you ordered the old one.

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daninho wrote:
No, you have to order the new version, you wont get the new version if you ordered the old one.

How do I tell them apart ??

Box
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chadvone wrote:
daninho wrote:
No, you have to order the new version, you wont get the new version if you ordered the old one.

How do I tell them apart ??


The new one comes with XHP35 HD instead of HI like the first version.
chadvone
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Well BG’s add is saying both. It’s on the way.

daninho
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the new version should also come with the 3100mah IMR cell instead of the protected 3600mah. Like i mentioned earlier i tested the old version with an LG HG2 cell and it was brighter as well.

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I’m kinda lost. Is the new version better or worse than this one, and what exactly are the differences?

daninho
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Some prefer the old one and some the new one. The light was marketed as a 2000 lumen flashlight and it could not reach that claim, i guess thats why they offer the new version now which should be a bit brighter but has less throw since it is the “Hi” Version + it comes with the IMR cell. All those steps should make it brighter, i dont know if it can reach 2000 in the end. Im sure many ppl will test that for sure. I would prefer maybe the new version because i dont care that much about throw

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3 switches…

daninho
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Jerommel wrote:
3 switches...
yeah but i like the additional paddle switch. You obviously dont like 3 switches laughing
chadvone
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I am thinking 3 switches will work great for my uses. Underhand while walking, overhand while spotting something afar. Will have to wait and see.

steve_1979
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Hello everyone. Smile

I’m new to the forum and torches in general.

On Monday I ordered an XT11GT from banggood thinking it was the new HD version. I have since noticed that their webpage states both HD and HI on it which is confusing. My confirmation email says that the old HI version has been posted (I have sent banggood an email asking for confirmation on which version it is).

The German forum says that there’s an issue with PWM flickering on the old HI version and there might be a problem with overheating too. If I receive the HI version would I be better off sending it back and getting a new HD version instead?

Thanks in advance,
Steve

chadvone
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Steve, I have one on the way also. I also asked them if it was the version with PWM.
They said it didn’t have PWM.

steve_1979
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I have also messaged Going Gear (they have run out of the HI and only have the HD available now).
They said that both versions will be just as reliable but the HI is brighter and will last longer.

chadvone
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I thought the HD was brighter.

daninho
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Yes the HD should be brighter but less throw

steve_1979
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Which version would be the best for self defence?

The HI with a brighter more focused hotspot or the HD which produces more light overall but is less focused and (I guess) has a slightly less bright hot spot?

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Thanks for the review, I just received mine today and it is the HI version. I do not notice any PWM with my eyes so, that is good enough for me. I really like how in the outdoor mode, you can use the side and pedal switch to go H>M>L or L>M>H. I’m currently using a 30Q in mine instead of the supplied 3600mAh protected battery.

daninho
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I think the HI version is not bad. I never see pwm, im not sensitve for that i guess. you can detect it with the slo-mo function of your smartphone. I like the light despite mine has some tailcap contact problems. What you can detect with the naked eye is the regulation of the light, the light flickers a bit when during a step down or step up, the regualtion is a bit wild as you can see in my review. In a real world scenario it is probably not from interest.

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Just got my klarus xt11gt. The newer version XHP35 HD E4 with the klarus 3100mah IMR battery included. To other xt11gt owners, does yours have this hiss sound? If yes, I guess it’s normal.

I noticed that everytime I turn on at Turbo, I hear a very soft high frequency hissing sound for just around 2secs then it goes away. I only noticed it because I’m in a quiet room and I held it near my ear.
It only does that sound when newly turned on, if I turn it off then turn on again right away, there’s no hissing sound. If I rest it for a couple of secs/min to cool down then there’s that sound again.
I tried using another battery (olight), it doesn’t make any hissing sound at all.
I tried the klarus IMR battery on my BLF A6, I dont hear any hissing sound.

And also can you please check if when you remove the tailcap after the hiss/hum sound, if the tailcap and some also in the body has a very slight hint of burnt smell.. it’s not too much just a hint of burnt smell or possibly some other electrical reaction smell. Thank you.

*additional observation, I noticed that mine’s beamshot tested against a white wall has a very small dark spot in the middle (doughnut hole as they call it in flashlight forum). Does yours have this?


daninho
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The hissing sound seems to be normal, at least according to other owners. I might check out the xt12gt next week

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