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7 of 7 people found the following review helpful
on April 19, 2012
The Quark X 123^2 Tactical is a fantastic flashlight!

* The materials and build quality of the life are far above average.

* The number of modes available is impressive -- some of which are not found in lights that cost twice as much!

* The relatively short length of the light produces an amazing maximum output of 360 lumens. This light is bright!

* The use of two CR123A batteries provides higher maximum output while increasing overall run time.

* The size and weight of the light are great. The length of 4.5 inches is long enough without being too long. The weight of 1.8 ounces is barely noticeable inside pants pockets.

I honestly cannot complain about much of anything. The programming of the light was a little confusing and difficult before I got the hang of it. Now, its a non-issue.

Something else great about the light are the number of accessories included. I had never considered the use of a hand grip, but it's nice to have. The nylon holster, small keyring, and lanyard are nice additions. Also included are a pair of replacement o-rings.
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4 of 4 people found the following review helpful
on May 19, 2012
Verified Purchase
I have EDC a Surefire E2DL for the past 3 years. I got this light as a gift for my roommate. It is noticeably smaller, both in length and diameter, as it does not bulge out at the head or tail like the E2DL does. It is basically a slightly larger diameter than a CR123 battery, 2 batteries long, with a small LED and reflector. It's a great size light, and you don't even feel it when you carry it. It feels like a 1 cell light almost, being so small. It's fantastic.

The beam and smooth, but it is more of a flood light than the E2DL, for sure. Apparently this is unavoidable, being a large LED in a small reflector. It puts out a lot of light and throw is decent, but there is lots of light "lost" in spill. This is a great general purpose light, not so great a pocket thrower.

The pocket clip is great, and easily reversible. To switch from head up to head down, you just switch the tailcap and head locations. What could be simpler?

Overall, a great light and I am quite happy with the purchase, as is my roommate.
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3 of 3 people found the following review helpful
on January 20, 2013
The product that arrived was QT2L-X (after checking elsewhere online the part# appears to match what is listed as the X123). The "max" brightness is excellent lighting our entire living room. As a tactical it fits the bill.

Optional Flashlight Settings
1) Moonlight: .3 lumens 25 days (useful if you don't want to draw attention but still read)
2) Low: 3 lumens for 5 days
3) Medium: 65 lumens for 11 hours
4) High: 160 lumens for 4 hours
5) Max: 360 lumens for 1.7 hours
6) Strobe: 360 lumens for 3.4 hours
7) SOS: 360 lumens for 6 hours
8) Beacon: 0-360 lumens pulse for 16 hours Operation
Programming the flashlight is a bit cumbersome so you really only have 2 of the modes above at any given time.

Pros
* Multiple brightness levels give you 8 options
* Brightest "Max" setting is excellent (truly blinding)
* Good size
* Black anodized aluminum body feels excellent
* IPX8 rating - water resistant/submersible to 3 meters
* Impact resistant to 1 meter
* Maximum beam distance of 119 meters (390 feet)

Cons
* Two C123 Battery, wish it was AA
* No Beam Focus

Even with the few cons, it is an excellent flashlight for the money, overall impressive.
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5 of 6 people found the following review helpful
on January 31, 2012
Verified Purchase
All I can say is wow, I've looking for a smaller but poweful tactical flashlight and this is the one. I bit pricy but no regrets, quality, size, performance, accessories its all good. To be honest I'm not the type to write reviews but this product its amazing, the brightness of this flashlight is incredible not to mention the program to max at 360 lumnes. I'll would strongly recommend this product congrats 4Sevens.
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2 of 2 people found the following review helpful
on June 7, 2013
Verified Purchase
They have managed incredible output, in a surprisingly wide pattern, which reaches out long distances without fading away - with physical dimensions are just barely larger than the batteries. The smart circuitry that safely allows use of 3.7v rechargeable CR123A batteries is an extra bonus.

At first I wasn't sure I'd like the programmable dual output modes, but realistically I only use two modes on any of my lights - max "light up everything in the near universe" and low "enough light for navigation without destroying night vision" so it fit my needs perfectly fine. The Tactical version DOES also have temporary on via the tail switch, which I'm 99% sure the Pro version does not - an important consideration for some folks.

The only thing I don't like about this light is how far it hangs out of my pocket when clipped in. Easy fix to that is getting the "deep carry" clip that is offered as an optional accessory.

All in all out of the dozen or so pocket lights I've owned, this is the best. Compared to the big names on the market this is less expensive, higher output, longer runtime, better construction, better circuitry - it's just plain better in every way.
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1 of 1 people found the following review helpful
on September 20, 2013
Verified Purchase
I absolutely love this flashlight. It's the perfect size light to clip in my pocket, throw in a backpack, or roll around in the console of my truck. Using the pocket clip, it's barely felt. For six months it has been a reliable, sturdy tool for me both at work and home.

It has gone camping, fishing, repaired my motorcycle (hard to find those dropped screws without good light), been dropped more times than I can remember, and it just keeps on going. It goes on nightly dog walks, pre-flights the airplane, and goes to the shooting range.

The light pattern tends to be smoother and nicely spread. It's not pin-hot bright in the center like some lenses, but it's really good for most work and illumination. It's well controlled and powerful. The button is solid and precise and feels metallic and sturdy. There are many accessories you can buy through Four Sevens to customize the light, too, which could be fun.

I have medium-sized hands, and the flashlight is just perfect for grip-and-thumb activation. This makes the light a respectable shooter's light. I have a feeling, though, that folks with bigger mitts will end up covering the lens with the karate-chop side of their palms if used this way. However, the light also fits nicely between two fingers, allowing two-handed grip. It all depends on your own flashlight/pistol style. The light is small enough to manipulate easily, but big enough that you won't drop it.

My only gripe is the programming mode. Specifically, when trying to program the "loose head" setting, you have got to be SO precise that it's annoying. I've learned to use the pocket clip as a line-up guide. The instructions mention loosening the head a half-turn before spinning to program, and that half-turn has to be pretty exact. After four twists of the head, you have to finish on that same spot, too. Turn too much, or too little, and the programming sequence is moot; You'll have to turn off and repeat the process. It seems like you reach a point where you have this process nailed, and suddenly, you have to re-learn it again.

It usually takes me three to five attempts to enter programming mode for the loose-head setting. The tight-head setting seems to work every time. This is an operator function, though, and not the fault of the light. It does what it's supposed to do. Practice, practice, practice.

All in all, I'm very, very pleased with the quality, options, and accessories. If, by some miracle, this light were to break (and I can't see that happening), I'd replace it with the exact same one.
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1 of 1 people found the following review helpful
on January 6, 2013
Verified Purchase
Bright, well made, nice box, and accessories. Nice controls ok instructions but it helps to go on line to understand them better.
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1 of 1 people found the following review helpful
on December 10, 2012
Verified Purchase
take some getting use to but once you have it mastered you wont take it off your hip, pricey but worth it
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1 of 1 people found the following review helpful
on April 28, 2012
Verified Purchase
I've had a lot of flashlights fail over the years, usually the switches and contacts, and some failed when I needed them most in remote areas. Situations arise where a flashlight failure coulde even be life-threatening. There are a few brands of high quality LED lights that I'm now pretty comfortable depending upon, Coast/Lenser and Fenix, and now 4Sevens. Unfortunately I've had Mini-Maglights fail.

It would be hard to imagine a more versatile flashlight than the 4Sevens Quark X123(2).

I'd previously used a red LED beam for general use during the night when I didn't want to disturb my night vision, but the white "moonlight" mode of this flashlight seems equally useful in that it is dim enough so that it does not disturb night vision and bright enough to see things that aren't too far away.

Each of the steady beam modes, of increasing brightness, has its usefulness. I can see how in an some emergency situations the full 360 lumen beam could be very handy, but I'll mostly use the two dimmest modes for long battery life. I'll also carry a couple of spare CR123A batteries, which are very small and light.

For the wildest backcountry use, plus general household use, this is now my flashlight of choice. The lithium cells should provide good illumination and battery life even in cold weather, unlike alkaline cells.
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3 of 4 people found the following review helpful
on January 1, 2013
Verified Purchase
I feel bad for police officers when their surefire and other high end tactical flashlights that are larger and roughly 2-3x the price of this one. Several times I have used my light while theirs is illuminating an area and it looks like someone actually turned a 'real' light on.

If you feel the max light output is too much you can use the lower setting by programming it. I use the max brightness and the flashing max brightness as my 2 settings on the bezel position. Rotating the front bezel one direction gives me the steady, max brightness output and rotating it the other way gives me the max brightness flashing light.

The switch is on the back of the flashlight's tiny body, and it comes with a belt clip, as well, and a lanyard and storage pouch.

The brightness outperforms any high end tactical light I have seen so far, and for much less money.

Additionally, I know the owner of the company who designs the flashlights. He is very down to earth and listens to customer input. No large bureaucratic organization to suppress design improvements.

Very highly recommended!
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