Most people carry a phone light and then find out it is useless the moment they actually need it, whether that is under a car, up in an attic or fifty feet down a dark trail. A phone lights about four feet and drains itself doing it. A pocket flashlight putting out 1500 lumens is a different category of tool, and this one is small enough that carrying it is not a daily decision.
The T9 is more than a beam. There is a side flood light for close work where a tight hotspot is worse than nothing, a UV light for spotting pet stains and leaks, and a red laser for pointing at something across a dark yard without walking over to it. Each has its own switch, so you are not cycling through four modes to get back to plain white light.
The tail is magnetic with a clip, and that is the feature you end up using most. Stick it to a hood, a workbench or the inside of a toolbox and you get both hands back. It charges over USB-C from the same cable as everything else you own, and the battery indicator tells you where you stand before you head out instead of halfway through the job.
Reviews below include verified buyers of this exact item from before it joined the REIDWOOD kit, plus REIDWOOD customers as their gear gets out there.