The head of the L-Mini is made of s single piece and holds the lens and reflector. Right up the front is the lens which is made or hardened ultra clear glass, thought I really can't tell between regular and these ultra clear ones. Behind the glass is the aluminum reflector which has a light and fine texture. As you can see from the image to the right, there are noticeable rings running down the length of the reflector cup. The reflector surface is well polished and clean. The emitter fits into the bottom of the reflector cup and is well aligned. The exterior is nice and smooth with a matte texture. It's finished in Type 2 anodizing and is available in either black or silver. It has a very simple cylindrical design with no additional design elements. My sample did have a slight chip at the edge of the bezel. Threads on the inside on the inside of the head are well machined with rough edges and such.

The L-Mini is very compact as far as 18650 powered lights go, mostly thanks to its streamlined head which is no thicker than its body. The battery tube has a nice and rough textured knurling covering most of its exterior surface. I like the knurling as it provides a great grip but not being too aggressive or having sharp edges. The emitter module and LED sits at the front end of the battery tube. The module itself is made of brass which apparently helps with heat dissipation. The threads on either ends of the battery tube are well machined and are anodized too, but I do find them rather thinly cut. There are also 2 well lubricated o-rings placed behind both the threads which provide good water barriers. The internal wall of the battery tube is anodized as well in the same finish as its exterior. The diameter of the battery tube is somewhat narrow, so slightly larger protected cells such as the gray ones by UltraFire will definitely not fit. With my sample, AW protected cells fit very snug but is still able to slide in and out without getting stuck. 17670 cells will fit without problem though. The tail cap also has the same knurling as the battery tube which provides great grip when unscrewing during battery changes. A reverse push button switch is housed inside the tail cap with a long and narrow spring for the "-" battery contact. The switch is held in place securely by a retaining ring. There's a hole at the end for lanyard attachments which is similar in design as that of the Inova X5's. The switch cap is made of GITD rubber and is relatively thick and has a smooth texture. The switch mechanism has gives a nice tactile feedback when gives a positive feedback when clicked. Switch travel is average, not too long or too short. The button sits recessed within the tail cap thus allowing the light to tail stand without problems.

If you're unfamiliar with any of the terms used in this review, click here for explanations on common flashlight related vocabulary.

The L-Mini provides 5 output modes in the following sequence:

Off > High > Medium > Low > Strobe > S.O.S.

The lower output modes show no signs of PWM flickering. The light does have a memory feature which allows the light to switch on to the previously used level. Beam profile provided by the L-Mini has some ring shaped artifacts due to the reflector which has noticeable segments running down the length of the cup. Do note that the rings aren't very significant, mostly around the corona and the outermost area of the spill beam. There is a slightly darker region to one side of the corona just outside the hot spot. The hot spot itself is well focused and is quite nice. Beam temperature is almost a perfect white with a very slight violet hue which is almost unnoticeably unless directly compared to am actual light with pure white tint. Regulation is well maintained with a 18650 cell, and runtime is also very good. The L-Mini incorporates a protection circuit which cuts off output from the cell so you don't have to worry when using unprotected cells. I did notice one quirk when testing though. When doing half presses to switch between modes, the light sometimes goes off and requires an additional half press to cycle to the next mode.

The Good - Nice compact size for a 18650 powered light. Provides good regulation and runtime.

The Bad - Mode switching sometimes inconsistent causing the light to switch off.

The Relative - Beam profile has some ring shaped artifacts and a slightly cool tint. Uses a reverse push button. Is able to tail stand. Has memory feature for output modes. Some protected 18650 will not fit.

Head (front view).

Head (side view).

Head (rear view).

Body (front view).

Body (side view).

Body (rear view).

Tail cap (front view).

Tail cap (side view).

Tail cap (rear view).