The EagleTac's T-series has a larger overall diameter. The T10LC2 incorporates some design revisions to the construction of the head and reflector. A smooth stainless steel bezel is included in the package which can also be swapped with an optional crenellated bezel sold separately. Unlike the earlier models which would allow the lens to drop out when the bezel is removed, this new head design has a lip which holds the lens in place. So you could also use the light without any bezel if you prefer an all-black look. The lens is advertised as being multi-coated glass providing up to 99% light transmission out the front. The reflector used looks very nice with a consistent textured surface and well polished coating. The LED sitting at the bottom is practically perfectly aligned with the reflector upon visual inspection which is nice. Externally, the head is of a subtle conical shape and has 6 flat faces machined all around covering most of the surface. These also act as an anti-roll feature when the clip it detached. The neck area is of a hexagonal ring shape, much like nut. At the rear end of the head is a ring of subtle striped knurling. Looking from the rear you'll see the electrical contact to the battery. A physical reverse polarity protection system in implemented in the T10LC2 so you don't have to worry about accidentally damaging its electronics. Do note that this also means that you will not be able to use the older style flat-topped 16340 or 18650 cells. Type 3 anodizing is well finished throughout the head with no flaws to be found. Overall the head feels very solid and well made.

The battery tube has a band of striped checkered knurling about 2.5cm wide running around the middle. There are also 2 flat faces on either sides which have some branding text printed on. The detachable clip fits towards the front end of the battery tube and slots in nicely into a recessed slot. This slot also has an additional alignment feature which prevents the clip from sliding rotationally around the battery tube. As you can see from the image to the right, the clip only allows for head-up carry, unlike the single-celled models. The battery tube has a recessed region towards the rear end and also a more pronounced lip than the P10C2 which makes it more comfortable when held in a cigar-style grip. Threads on either ends are well-cut, they mate well with both the head and tail cap respectively. The threads towards the front are uncoated as required to activate the low output mode, while threads at the rear end are coated. This allows the light to be effectively locked out when the tail cap is slightly loosened. As with the head, anodized coating is well done, no complaints here. Do take note that the detachable clip does fit tightly around the battery tube, as such, repeated removal and attachment of the clip will cause the anodized coating to scratch off. The tail cap houses a forward push button which allows for momentary activation. Also since all mode changes are controlled via head twists, you can use this light for morse code or other signaling purposes without issues. The switching mechanism is stiff and has an average amount of travel before engaging to the constant on position. When clicked, tactile feedback is positive with an audible click. The spring used for the "-" contact is gold-coated for better electrical contact. On its exterior, the switch cap also has 6 flat faces machined all around providing a good enough grip during battery changes. The rubber switch cap has a checkered textured knurling and sits recessed inside the tail cap which allows the light to tail stand on flat surfaces. There are 4 shallow scallops machined right on the rear lip of the tail cap which makes pressing of the switch more comfortable. Finally there's a small hole for lanyard attachments.

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

The EagleTac T10LC2 provides a pretty straight forward user interface, especially when compared to all the multi-mode and variable brightness ramping modes of some recent lights. This will be a welcomed addition to some who just want a light that works without confusing the general user. With the head tightened the light is in Hi mode, advertised at 295 lumens. Loosened puts it into Lo mode, advertised at 60 lumens. The T10LC2 will accept either 2x 3V CR123, 2x 3.7V 16340 or 18650 cells.

EagleTac has designed the reflector to provide a beam profile which has brighter spill beam. I noticed that the beam produced by the T10LC2 isn't as wide as from the earlier T-series models. Although, it does throw a brighter hotspot. Both hotspot and spill beam are smooth with no major artifacts other than the slight dark ring around the hotspot. This is common among most XR-E based lights. However the dark ring here isn't as bad as I've seen in some others. Right outside the hotspot is a medium sized corona which transitions into the spill beam. My sample of the T10LC2 has a very nice neutral white color temperature, perhaps slightly warmer on Lo level. No worries of getting a blue/violet hue at high output levels thanks to the well-designed and effective heat sinking in the head. The T10LC2 has similar performance to the T10C2, with the addition of being able to run on a 18650 cell. However it's not regulated with a 18650 unlike the T10L's.

The Good - Fit and finish is excellent with nice touches such as the stainless steel bezel and scalloped tail cap. Simple user interface with nice variation of Hi and Lo brightness levels.

The Bad - Rather short runtimes on Hi level, a tradeoff due to brightness intensity.

The Relative - Neutral white beam color tint. Very wide spill beam. Uses a forward push button. Is able to tail stand. Convenient detachable clip.

Smooth bezel.

Crenellated bezel.

Head (front view)

Head (side view).

Head (rear view).

Battery tube (front view).

Battery tube (side view).

Battery tube (rear view).

Tail cap (front view).

Tail cap (side view).

Tail cap (rear view).