Klarus XT11S - 1100 Lumens

Retail: $99.95
You Save: $20.00 (20.0%)


The upgraded Klarus XT11S is a 4th generation ultra-compact, lightweight, super-bright, rechargeable tactical flashlight! Using a CREE XP-L HI V3 LED, the XT11S delivers an impressive maximum output of 1100 lumens with a maximum beam distance of 330 meters! Like all the other flashlights in the Klarus XT series, the XT11S has a dual tactical tail switch for easy and simple non-visual one-handed operation, but it also has a side switch making the XT11S designed to satisfy any user's requirements for an EDC flashlight. The side switch also incorporates a specially designed lock function to prevent accidental illumination.

A wonderful improvement of the XT11S is the fact that it is USB rechargeable. Simply plug a standard micro USB cord into the USB port located on the side of the flashlight and charge the battery! No more removing the battery and finding a charger. The XT11S also has a battery capacity indicator display which allows the user to control the usage according to the remaining charge of the battery.

This amazing flashlight is entirely customizable to the user's needs and can serve a variety of different functions. Some of the features of the XT11S include: Instant Strobe, Instant Turbo, Instant Low-light, Memorized Function ability, SOS mode, Side Switch Lock Function, Battery Capacity Indicator, USB Rechargeable, ITS Smart Temperature Control System, and Easy Mode Change.

For safety and durability, the XT11S has a Smart ITS temperature control system that monitors internal temperature and adjusts the output for maximum brightness. This protects the LEDs and internal components to ensure safety, stability and optimum performance. It is constructed from Aircraft-grade aluminum 6061-T6 with Type III hard-anodized finish and a toughened ultra-clear glass with anti-corrosion AR coating. The XT11S is impact resistant up to 1 meter and is waterproof up to IPX-8 standards. Battery included.

The XT11S includes three operating modes:

1. Conventional Tactical Mode - This mode is similar to the rest of the XT series, but the side switch design on the XT11S allows for easy operation in any environment or situation

2. Hunting Mode - This mode allows for instant high-light or low-light. The user also cannot activate the Strobe Mode through the tactical tail switch.

3. Ultimate Tactical Mode - In this mode, the flashlight will only operate in Turbo and Strobe mode and the side switch is inactivated. This mode is incredibly useful in extreme tactical situations.


  • Uses a CREE XP-L HI V3 LED delivering a max output of 1100 lumens and a max beam distance of 330 meters
  • Is an upgraded 4th generation ultra-compact, lightweight, super-bright, rechargeable tactical flashlight
  • Has a dual tactical tail switch allowing for easy one-handed non-visual operation and a side switch
  • The side switch incorporates a specially designed lock function to prevent accidental illumination
  • Multi-purpose with clear, versatile functions: Straight 2 Strobe, Instant Turbo, Instant Low-light, Memorized Function ability, SOS mode, Side Switch Lock Function, Battery Capacity Indicator, USB Rechargeable, ITS Smart Temperature Control System, Easy Mode Change
  • Three Operating Modes:
    • Conventional Tactical Mode
    • Hunting Mode
    • Ultimate Tactical Mode
  • Six Lighting Modes including Two Flashing Modes:
    • Turbo (1100 lumens) - 2 hour runtime
    • High (400 lumens) - 4 hour runtime
    • Medium (100 lumens) - 18 hour runtime
    • Low (10 lumens) - 260 hour runtime
    • Strobe (1100 lumens) - 4 hour runtime
    • SOS (100 lumens) - 54 hour runtime
  • Direct Recharging Function with a standard Micro USB charging port
  • Battery capacity indicator display allows the user to control usage according to remaining charge
  • Smart ITS temperature control system monitors internal temperature and adjusts the output of maximum brightness that protects the LEDs and internal components to ensure safety, stability and the best performance
  • Is impact resistant up to 1 meter
  • Is waterproof up to IPX-8 Standards
  • Has a 5 year Klarus warranty

Included Accessories:

  • One USB charging cable
  • One lanyard
  • One spare O-ring
  • One rechargeable 18650 battery
  • One holster
  • One pocket clip

Amazon Listing can be found here : Klarus XT11S

Currently ranked in the top 10 tactical flashlights here

  • Uses a CREE XP-L HI V3 LED with a lifespan of up to 50,000 hours
  • Working voltage: 2.5V-8.4V
  • Compatible Batteries: 1 x 18650 with PCB protection or 2 x CR123A batteries (Do not use 16340 batteries)
  • Charging time: Depends temp-on the battery capacity. Formula: charging time = (capacity of battery/1000mA + 1h)
  • Body color: Black
  • Reflector: Smooth reflector
  • Switch type: Dual Tactical Tail Switch and Side Switch
  • Dimension: (Head) 34.9mm x (Body) 25.4mm x (Length) 139mm
  • 4 lighting modes and 2 flashing modes
  • Net weight: 115g (excluding battery)
  • Material: Aircraft-grade aluminum 6061-T6, Type III hard-anodized
  • Waterproof: IPX-8 (underwater 2 meters)
  • Lens: Toughened ultra-clear glass with anti-corrosion AR coating
  • Included accessories: USB charging cable x 1, lanyard x 1, spare o-ring x 1, 18650 battery x 1, holster x 1, clip x 1

Overall Customer Rating of 10 Reviews:

Product Reviews:
My Karv Maga coach sold me on this brand. The functions are great, easy to use, nice quality. I feel safer and use it also while crossing the street or when there's no light on sidewalks where I need to walk. Nice design, great package and price! Thank you!

Klarus xt11s

Product Reviews:
This is a serious piece of equipment. Excellent throw with a tight center beam and good spill. Feels good in the hands and and not too big for my EDC pouch. It will take some time to get accustomed to the various settings. I now have it at my preferred setting. Also, Flashlightz was gracious enough to honor my request for a price-match after my purchase. Overall, a terrific product and customer service!!

Klarus XT11S

Product Reviews:
Great flashlight! This light has a very durable body and the twin switch tail cap is awesome. Outstanding stand by time on rechargeable battery as well as run time.


Product Reviews:
This flashlight is the brightest flashlight I've ever used.

Thank you

Great Flashlight

This flashlight is great it performs just as described, its awesome all my coworkers love this light.

great flashlight

Good delivery time and very happy with the flashlight. Already bought same flashliht on amazon so now I have two. Best light I own Thanks

Klarus XR 11S 1100 lumens

An excellent product. Well made. Operates just like it is supposed to.
I didn't find a spare o-ring in the package.
Excellent beam.
Switches feel well made.


An excellent product. Well made. Operates just like it is supposed to.
I didn't find a spare o-ring in the package.
Excellent beam.
Switches feel well made.

Klaus XT 11S

I really like this light. It is bright for its size. I prefer over my Thrunite TN12. The Klarus light shines very white. I believe it is a good flashlight for the money. Also I received the in the mail with no problems.

Great product

I received my flashlight very quickly. Everything was with it and the light was exactly as advertised. Very bright.

Number of questions: 0

FlashlightZ Discussion

The Klarus XT11S - Programmable Tactical Flashlight

Author: Carolyn

As Klarus' first programmable flashlight, the XT11S really set such a high bar for tactical flashlights in the flashlight industry today. The XT11S is an upgraded version of the original Klarus XT11. This particular flashlight is a beloved tactical flashlight because it is so powerful and so compact. The XT11S is just as compact but a lot more powerful. Equipped with a CREE XP HI V3 LED, the XT11S can deliver up to 1100 lumens and has a max beam distance of 330 meters. So this flashlight has quite a good focused beam on it. Now buckle up because there are a ton of features to this flashlight.

First I'm going to start about with how compact this flashlight is. It's about five and a half inches in length so it's actually quite easy to carry on your person. It does come with a pocket clip so you can use that pocket clip or you can use the included holster that comes with this flashlight. It's a perfect little handheld flashlight. Simply how compact it is makes it an excellent flashlight for law enforcement, security, any outdoor activities, and more.

User Interface

To operate the XT11S you can use the dual tactical tail switches or you can use the side switch. It's really great that the XT11S gives you these options. So if you would prefer to use the XT11S in a more tactical way you can use the tail switches or if you prefer to use it in a more casual way you can use the side switch. Also, if you would rather not use the side switch at all, you can take advantage of that built in lockout function that will completely lock out that side switch allowing you to only use the dual tail switches.

The XT11S has a total of 6 lighting modes. You have the four brightness levels which range from 10 lumens to 1100 lumens and then you've got two flashing modes - strobe and S.O.S. The variety in brightness levels and the two flashing modes alone make this flashlight incredibly versatile. One thing that's really nice about that side switch is that it does have a built in memory function so if you want to take advantage of that built in memory function definitely use that side switch.

Programmable Settings

The XT11S also has 3 different programmable settings. You've got the Conventional or Classical Tactical Mode, the Hunting Mode, and the Ultimate Tactical Mode. Now we'll start with the Conventional Tactical Mode. If you've ever used an XT series Klarus flashlight, you know what the user interface is like and the Conventional Tactical Mode is very similar to that. Looking at the dual tail switches, you have the primary switch and the mode switch. With the primary switch you have a momentary on that will immediately go into turbo. You can also turn on and off the flashlight using this switch. With the mode switch you can immediately access the strobe simply by pressing it down. Even if the flashlight is on you'll still be able to access the strobe mode. You also have easy mode cycling whenever the flashlight is turned on. So simply click the mode switch while the flashlight is in the on position and you can cycle through all the brightness levels. Now I cannot tell you how important it is in any tactical flashlight to have an immediate strobe mode. So the fact that this strobe mode is so easy to get it really makes the XT11S shine. The side switch is also able to cycle through the brightness levels and it's also able to access the strobe mode and the S.O.S mode. So you just double tap to get into the strobe mode and double tap again and you'll be in the S.O.S mode. So that's really nice. So this classical setting is really excellent for just a casual user or anyone who wants immediate access to that strobe mode. It's great for any potential tactical situation. The Conventional Tactical Setting may be the most versatile setting out of the three.

The next thing I want to talk about is the Hunting Setting or the Outdoor Setting. This setting, as you can imagine, is excellent for any outdoor activities: camping, hiking, hunting, what have you. With the tail switches, you still have the momentary on and turbo with the primary switch and with the mode switch, rather than the strobe, you will have the low mode when you press down on it. Of course you can cycle through the different brightness levels as well. The side switch functions exactly the same as it functions in the Conventional Tactical Setting so I won't need to explain that again. Like I said this is really great for any outdoor activity because you can immediately access that low mode when you're camping. It's imperative that you access the lowest mode or at least have a built in memory function because if you're in a tent and you need to read a map or look into your bag you don't need to blind yourself and your other campers with 1100 lumens of light. Not only does that waste the battery but it disorients you as well.

Finally we're onto the last setting which is the Advanced Tactical Setting or the Tactical Assault Setting. This setting is for extreme tactical situations and honestly probably won't be used nearly as often as the other two settings. So in this setting you only are able to access the two tail switches. The side switch is completely locked out. With the primary switch you can access the momentary on turbo and with the mode switch you can access the strobe and that's it. You will not be able to access any of the brightness levels and as I said before this is for extreme tactile situations. Between these three programmable settings you have everything you could possibly need in a flashlight. Not to mention it's really easy to carry around with you so this could easily become your go to flashlight.

USB Rechargeable Flashlight

Next I'm going to talk about the batteries. The XT11S does run on an 18650 battery but you can also use a pair of CR123 batteries. It does come with an 18650 battery already so that's nice. The XT11S is a USB rechargeable flashlight so you can recharge it using a micro USB making it extremely convenient. You don't need to buy any expensive chargers and you don't even really need to buy backup batteries, although I would recommend it. It does have a charging indicator lights and battery indicator light located on the side switch. While charging it the indicator light will be glowing red. Whenever it's completely charged the indicator will glow green. And if there is some problem with the charging process the indicator will glow orange letting you know that something's going on and it's not able to charge. With the battery capacity indicator, it will shine green whenever the battery is 70 to 100 percent charged, orange when the battery is 30 to 70 percent charged, red when the battery is 10 to 30 percent charged, and it will flash red when it is less than 10 percent charged letting you know it is time to charge the flashlight or at the very least change out the batteries.

Safety and Durability

Next I want to talk about the safety features and durability of the XT11S. This flashlight comes with a smart ITS temperature control system and this system monitors the internal temperature of the flashlight and will adjust the output of the brightness to protect the LED and the internal components. This ensures that your flashlight will work safely, stably, and have the best performance that it can ultimately have. When you are purchasing a high end flashlight you absolutely want this feature because you do not want to have to worry about the LED burning out or the components being damaged just through use alone. This flashlight is crafted from aircraft grade aluminum alloy with a hard anodized finish giving it that really nice sleek look. The dual springs in the flashlight protect the battery so it is impact resistant up to 1 meter so you don't need to worry about any accidental drops. Also, the flashlight is waterproof up to IPX8 standards which means you can submerge the flashlight in water up to two meters and for 30 minutes and it will be working just fine.


So final thoughts with this flashlight: there is a lot going on with the XT11S. It is so versatile and it has so many features that it is just an excellent flashlight for anyone in any field. Definitely an extreme tactical flashlight.