The light comes packed in a nice wooden gift box, inlaid with foam placeholders.

1x Container of silicon lubricant

The head of the LF5 houses a SSC P4 emitter and electronic components. Right up the front is an removable bezel which holds the AR coated glass lens and textured reflector which screws into it. There's a rubber o-ring tightly fitted between the bezel and lens which seals the front end for water resistance. The reflector used in the LF5 has a very fine texture which makes it look almost like frosted glass. Its very well finished, no marks, smudges or other defects were found on it. The threads on the bezel fit very well with those on the head with no noticeable play. With the bezel screwed down securely, the reflector and emitter are perfectly aligned. Both the threads and exterior of the entire head is evenly coated in a matte type 3 anodizing, its very well finished with no marks or blemishes. There's a band of lines machined around the front end of the bezel which helps with grip, especially when operating with one hand. Towards the bottom of the head, there's a white dot which serves as a marker which roughly shows how much the head has been twisted. A helpful touch when doing multiple twists for programming the light. The LF5 also comes with a cylindrical plastic diffuser which snaps in place onto the groove on its bezel. This allows the LF5 to be used as a marker, signaling, or area light which is very handy. The LF5 also comes with blue, red and yellow color filters which are designed to be used with the diffuser.

Just like the head, the battery tube of the LF5 is very well coated, right down to the threads. Right below the threads is a rubber o-ring for water resistance. There're 2 flat surfaces machined on the tube with the LiteFlux brand and model printed on one side. There're also 2 very thin slots running the length of the battery tube. It's probably too narrow and shallow to fit tritium vials though. At the bottom of the battery tube there're 2 holes and 2 wide, rectangular slots for various lanyard or key ring attachments. The inside of the battery tube is cleanly finished, no residue or machining dust could be found. There's a spring at the "-" contact which means that the battery will not rattle either in the off or on position. The tail end is flat, so there's no problem having it tail stand on flat surfaces. This is especially handy when using the LF5 with the included plastic diffuser attached, which makes it an ideal lantern style area light. The retail package also includes a small container of silicon lubricant which should last a few years under normal usage. A nice thought by the manufacturers, since this is a twist activated light after all.

The performance from the LF5 is average, especially in terms of its runtime. Still, the LF series is in a class of its own in terms of versatility thanks to its extensive programming options. My review sample has a slightly warm tint. Surprisingly, the smooth reflector used produces a very smooth beam with no visible artifacts in the hotspot or spill beam. Although the beam profile has a very tight hotspot at close range, the soft corona which tapers off smoothly into its bright spill beam effectively turns it into a medium spot at distances of 1m or more.

Now, on to the user interface. When tightened all the way down, the light is in off position. Right out of the box, the LF series has 7 modes which are 15%, 50%, user adjustable, 2 strobe modes and 2 S.O.S. modes. The switching works slightly different compared to other lights in that it has 2 on positions based on how much the head is loosened. A 1/4 turn puts it in position P1, a further 1/4 turn puts it in P2.

Next, programmability. The LF series offers a very wide range of programming options, even more than the NovaTac P series. With the LF lights you can adjust the intensity for any mode, including strobe and S.O.S. On top of that, you can even customize the frequency/period of the strobes. Also, it has much smoother transition steps when ramping through its output intensity levels. Unlike the NovaTac P series for example, which has distinct steps as you ramp up/down. Also, the PWM frequency used is high enough that no pulsing was detectable by my eyes, even at the lowest level. One drawback to this twist switching mechanism is that its not as intuitive when programming the light. Although the white dot marker on the head helps as a rough indicator, its still a chore, especially when multiple twists of 5 or more are required. A push button interface would have made this light a winner.

The Good - Excellent value. Extensive programming options. No pulsing noticeable even at its lowest output level thanks to the high PWM frequency used. Includes a handy diffuser tip and color filters.

The Bad - Twist interface can be a hit and miss affair when programming the light.

The Relative - Uses a twist switch. Light produced has a slightly warm tint.

Box (external view).

Box (internal view).

Head (front view).

Head (side view).

Head (rear view).

Battery tube (front view).

Battery tube (side view).

Battery tube (rear view).

Color filter (blue).

Color filter (red).

Color filter (yellow).

1x AA 2000mAh Eneloop