HOME > Flashlight-Collection English Ver > L6
SUREFIRE / L6 (This page is translated by nekomane)
Type Commercialy available light from SUREFIRE
Weight 244g (Actual weight with batteries)
KL6 (head only) 100g
KL6 (Head) Compatible bodies [optimized to 9V] M3, M6
Light source LuxeonV-Portable -Lambertian x 1
65 Lumens
Power source CR123A x 3
Water Resistance
Switch Will stay on while pressed. Click for continuous On. By unscrewing tail, lock out to prevent accidental operation possible
Other Type III Hard Anodized
3 x CR123A batteries included

From left L6 , M3 , L5 , M2 , L4 , mini-MAG 2AA

The body is based on a M3
Mine still had the M3 markings

Right is M3
You can attach the KL6 to a M6, too. Leaves some doubt about the style, though.

↑ Click to view in actual size in new window

Dimage Z1 ISO200 reduced to 640x480 1/6 f2.8 contrast low focus ∞ white balance AUTO
Comparison with M3(MN10 bulb) , Scorpion and Surefire L4

February 16 2004

This is a light with a LuxeonV-Portable. The KL6 head can be attached to a 9V type M3 and M6. My first impression was, 'Kinda long isn't it?', and next 'Huge head!'. I also felt the design and color of the head and body did not really go well together. This is probably because the head is rather bland with few juts or recessions, but maybe because I have gotten used to it, it doesn’t feel peculiar any more. Personally I like the style and silhouette of the M3, so I may have anticipated too much of the L6 which was said to be based on it.

The front outer most edge of the head has a wavy shape. When placed head down, it will keep you from forgetting to turn it off because you will see light seeping out from the crack. If you place an ordinary light head down it will become sealed and will trap the heat, especially for high powered lights. The wavy design of the L6 will help prevent that from happening. I noticed another thing when I did the run time tests. Owing to the large head, heat emission is efficient and this probably has a positive effect regarding bulb life.

The switch is the same click-on type as a L4, but a little softer. You have to press really hard on the L4 which is too stiff and I got a sore finger after repeatedly clicking it. The L6 does not have that problem and is easier to use. Of course, twisting the tail cap and locking it out will prevent the light from turning on when carrying.

The emitted light is flawless and very nice. A well focused beam from the deep reflector (though only slightly, it seems better focused than the L5 which was released at the same time) has a sufficient throw, and can replace powerful filament type lights such as the Scorpion, M2 or E2e. The runtime is extraordinary. It's wonderful that the initial brightness is kept for about 1.5 hours, but the way it dims by 'dwindling away' is especially nice. This 'dwindling away'(I measured 10lux after 15 hours) has a persistent feel compared to other Luxeon lights. Under some circumstances, a light like this may come in handy.

Though I think the L6 is an excellent light, the best or second best among the Surefire product line with it's balance of brightness and runtime, it can be said that the running cost of using 3 CR123As is expensive and uneconomic from a general view. Unless for applications where full power brightness is constantly necessary, in many cases a dimmer light may be enough. The light's potentials may have been reached if it had a mechanism to lower the brightness and increase the runtime (like the 2 level L1, or about a 3 level brightness changing function).

Overall, build quality and texture is what you expect from Surefire and good, but it is rather long and heavy, and from the price tag too, it is not a light you can recommend to everybody. Considering factors of brightness and runtime, at the moment it is the best commercially available light among the 5W type Luxeon lights. If you are insistent on performance, this light may be very attractive.

This review has been written by evaluating my own L6 and the LED built into it. Please read this upon understanding that LED colors and brightness vary with each unit.

HOME > Flashlight-Collection English Ver > L6
<< Back △ Flashlight-Collection English Ver.