The TN11 has a stainless steel smooth bezel up the front. This bezel is removable however the TN11 is not meant to be used without it as it hold the lens in place. The lens is made of hardened AR-coated ultra clear glass. The reflector used is smooth and relatively deep with a surface finish which is impeccable. Smooth and well-polished with no residual machining lines and such. Externally the head has a conical shape with some aesthetic grooved machined on and a series of cooling fins towards the neck area. There's also a raised hexagonal ring which acts as an anti-roll feature when the rear grip ring is not attached.

The battery tube continues the design styling of the head with some grooves running the length of the tube. The T30i was designed to run on either 2x CR123 or 1x 18650 and will fit either nicely with no tight fitting issues.. Threads throughout the light body are smooth, no complaints here. The removable grip ring attached to the end of default battery tube, it can't be attached to the end of the extension tubes. Not that you would want to hold the a light of that length in a cigar grip anyway. The T30i also comes with a removable pocket slip which again only attaches to the end of the default battery tube. The tail cap houses a forward push button switch which has an average travel and slightly stiffer than average tension. Fully engaging the switch produces a very positive tactile feedback and audible click too. The switch does stick out the tail end though so the light isn't able to tail stand.

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

The T30i has a simple user interface compared to most of the other ThruNite lights. With 3 output modes cycled through by a sequence of loosening and tightening of the head. All output levels are perceptively constant with no signs of PWM, even the lowest Firefly mode. Output cycles through the following order:

Firefly > Low > High

The beam profile is clean with a narrow hotspot and and substantial corona area. The spill region is mostly clean with some subtle ringed banding, although in all practical sense this really doesn't affect practical usage. Beam tint has a nice neutral white temperature, going slightly warmer around the corona area. The T30i is a more balanced model compared to the other high output models by ThruNite, providing good amount of output while maintaining stable regulation rather than pushing for maximum brightness.

The Good - Simple user interface. Good variation in output intensities. Sturdy build quality.

The Bad - Nothing significant.

The Relative - Mostly clean beam profile with a neutral white tint. Forward push button switch allows for momentary operation. Isn't able to tail stand.