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По умолчанию ReviewTheLight: Olight M18 Striker

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Olight has released an alternate version of their M18 Maverick, the M18 Striker. It's got the same form factor, but with the substitution of a black bezel with crenelations. Also, the UI has been slightly changed to a more tactical style and the max output bumped up from 500 to 800 lumens.


Thanks to Olight and GoingGear for providing the M18 for review.


I’ll be reviewing the M18 in two sections: first, I’ll discuss the light objectively (the facts about the light itself), then I’ll discuss the light subjectively (my impressions about the light's performance when used for specific applications). If you have any other specific applications you'd like the light tested for, let me know and I'll see what I can do.

Video Review

Below is a video review of the M18. Due to my old image hosting site closing down, I've got new restrictions on image uploads and have replaced the "Construction" section of my reviews with a more detailed video review.



Прямая ссылка на видео YouTube


This video is available in 1080p HD, but defaults to a lower quality. To select the playback quality click the settings button (looks like a gear) after you've started the video.


Objective

Manufacturer's Specifications

Price: 60 USD





Product Manual




Dimensions




Plus, here's a few shots with some good detail.




User Interface

The M18 Striker has a very simple user interface, controlling three outputs with a single forward-click mechanical switch at the tail.

When the switch is pressed half way, the light is turned on in momentary mode as long as pressure is applied, then turns back off. When the switch is pressed all the way, the light turns on and remains on until the switch is pressed again.

The Striker has three modes: High, Low, and Strobe. The Striker always turns on is High mode first. Low mode is activated by two quick presses of the switch (turn the light on, off, on). Strobe mode is activated with three quick presses of the switch (turn the light on, off, on, off, on).


Action Shots

You can click on any of these shots to see them full size.

BeamSlice


MugShot


Light in Hand


White Wall
ISO 100, f/3.5, 1/20"


Indoor Shots
ISO 100, f/3.5, 1"


Outdoor Shots

ISO 100, f/3.5, 2.5"


Long-Range Shots

ISO 100, f/3.5, 5"



Performance

Submersion: I submersed the M18 under a foot of water for about an hour, clicking the switch several times. I found no evidence of water entering or damaging the light.

Heat: The head of the M18 gets hot after about 8 minutes on High, then cools down fairly quickly due to a decrease in output.

PWM: I did not detect pulse width modulation on either mode of the M18.

Drop: I dropped the M18 from about a meter onto various surfaces (including grass, carpet, dirt, and hard wood), and found no cosmetic or functional damage.

Reverse Polarity Protection: I find no claims by Olight of reverse polarity protection, so be sure to insert the battery in the correct direction.

Over-Discharge Protection: There is a sharp drop in output near the end of the run time, so that's your signal to charge the battery.


Spectral Analysis


All light that we see as white is actually made up of several different colors put together. The relative intensities of the different colors in the mix are what determine the tint of the white we see. For example, cool white LED's have a lot of blue, and warm white LED's have more red or yellow. This measurement was done on a home made spectrometer. The plot below the picture is corrected for the spectral sensitivity of the human eye. Note: the peak in the 900nm region doesn't really exist, it's a piece of the second-order spectrum that's showing up here because of the high intensity of the light source.

Output and Runtime


ANSI FL-1 runtime ratings are the time it takes for a light to fall to 10% of it's original output (counting from 30 seconds after turning the light on).

The vertical axis of the graphs below represents a relative brightness measurement using a home made light box. The horizontal axis is time in hours:minutes:seconds. Runtimes are stated in hours:minutes:seconds. These graphs may be truncated to show detail.

Mode Comparison


High


Low


Strobe



Throwing Distance

ANSI FL-1 standard for stating a light's throwing distance is the distance at which the peak beam intensity (usually at the center of the beam) is 0.25 lux. I calculate throwing distance and candela (lux at 1 meter) by measuring peak beam intensity at five different distances and using the formula lux*distance^2=constant.

Peak Beam Intensity: 4683 cd
Throw Distance: 126 m


Subjective Review

Quick break down:

+ Simple UI
+ Easy access tail switch
+ Upgrade in output
+ Pointy
+ Slim design
+ Output drop before batteries run out
+ Lightweight

- High output drops quickly before regulation

The M18 Striker is designed to be a simple and effective light, and it does that job well. In a way, it's an upgrade from the M18 Maverick, but in a way it's a very different light due to a different purpose. The Maverick was a more general purpose light with more output choices, a more standard interface, regular bezel, switch inset within tail, etc. The Striker is very different, in that it lends itself more to those sorts of tasks that might be associated with it's name (to comply with forum customs, I'll leave you to your own conclusions). It's got a higher output than the Maverick, a simpler user interface, large crenellations on the bezel, and protruding tail switch.

The upgrade in output is expected enough, the new XM-L2 emitters give more light for the same input voltage, so they lend themselves naturally to such improvements. However, the user interface of the Striker is of a more "tactical" style, due to it's simple and dependable performance: it always comes on in High first, and the Low and Strobe modes are available via a simple path that's easy to remember. The crenellated bezel likely gives the Striker it's name, and the protruding tail switch makes it very easy to activate the switch even with gloves on and eliminates any ideas you might have had about setting the light down for a tail stand--it's very obviously meant to be held when it's in use.

Being a simple light, there's not much else to say about the M18 Striker. I really appreciate that there is a drop in output at the end of the battery life before it completely shuts off, giving you time to replace the batteries before you're left in the dark. However, I was disappointed to see the sharp drop to 400 lumens early in the run of High mode. I know there are heat limitations on a light this size, but I'd rather see it hold near the claimed 800 a bit longer and not drop quite so far.

I really appreciate the slim and lightweight design of the M18, it's one of the smaller lights in the single-18650 class. The bezel does add some significant length, but if you don't want such large crenellations on the bezel then you probably aren't interested in the Striker in the first place. The clip is well designed, allowing the M18 to rest deep in pocket without much protrusion, of to be clipped to the outside of a pocket and detached quickly when necessary. Springs on both end of the battery tube ensure that the battery should not be damaged in the event of an impact.

Overall, the M18 Striker is a well made and reliable light, and I the simplicity of the user interface is hard to beat outside of a single-mode light. If you don't mind the output drop in High and you're looking for a light with capabilities such as the Striker's name implies, then the Striker is certainly a good choice.


Long Term Impressions
I'll fill this part in after carrying the light for a while. If nothing get's added here, either I find nothing else worth noting about the light, or I end up not using it often.
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