NitecoreT4K 4000 Lumen LED USB-C Rechargeable EDC Keychain Flashlight Tag

Great for key sets,belt or pocket.200 lm is the max runnable setting the 4000 lm is a "burst" with a cool down so dont think it will run 4k all the time. 200 lm is still great for its size overall if you have a fobbed key for you vehicle that's about the length of this light.Warning when you use the 4k "burst" it could melt or burn thing. Had it about a foot from my hand and could feel the heat from it.

Never have I ever had a variable brightness flash light that had a screen to show you how many hours/mins you have at the mode your working in. Coupled with the ability to light up the world with TURBO MODE it's one of the BEST Flashlights I've ever owned

This super compact flashlight has amazing functionality with multiple brightness modes, and on its brightest mode is blindingly bright. As a rechargeable flashlight with a power readout on the screen, you always know when it’s time to recharge.

This is now my main flashlight I use it to check my property at night. I gave this four stars out of five do to there is no dust cover for the charging port. At nearly $100.00 for this flashlight, why is there no protection for the charging port! I have to be careful using this in wet weather. Otherwise I love the flashlight. Well made and solid.

Very nice light. For the size it's plenty bright enough and the battery seams to last good. (It'll you leave it on in your pocket for an hour) but the lock keeps that from happening

This thing is so bright. Yes it can only sustain turbo mode for, I think, 2 seconds, but you can press the button again. But word of warning if you keep it in your pocket, don't lean on it. I have burned holes in three of my jacket pockets. (photo is of the last one because this one went though both sides.) The flashlight does get hot. That is from the light. The light is so bright it will burn anything you have too close to it.

This is a lot of power in a very small flashlight. I like the display that gives you the state of the charge of the unit. The post of the end of the light to attach a ring is much too small. It is difficult to attach a ring.

This flashlight's advertised brightness is so good it is my main complaint with this item.So let's start with the good stuff. It is compact so it definitely will fit in a bag or pocket. The displayed battery life is also a good plus so you have a great idea on how long your light will last. The relatively simple two button system also makes managing the lighting, turbo mode, and lock mode easy.Now for some bad: the flashlight is thick. This is definitely to be able to accommodate the battery and maybe keep it thick enough for an easier grip. However, this means it kind of protrude from a pocket so it is not a "slim" look. The lock system is also not the most robust, I have had random jostling in my bad in more than one occasion unlock the flashlight without my knowledge.And for the BIG BAD: The turbo light. Now, don't get me wrong, that 4000 lumens is no joke. It is one of the brightest light I've ever seen and the way turbo mode work is quite intuitive by holding the top button, even with Lock Mode 1. Lock Mode 2 is what you need to prevent both normal and turbo lights from turning on. However, remember how I said the lock mode is not the most robust? Well, in my sling bag, somehow the jostling has been able to unlock my Nitecore T4K even in Lock Mode 2, and the various pressures in my bag turned on Turbo mode within my bag. That 4000 lumen intensity and heat was in my bag without my knowing it, and it melted the plastic bits around the zippers of the pocket it was enclosed in! The flashlight worked great! And it destroyed my sling bag showing off its greatness!So be cautious with where you store the T4K, because it may leave you with a few bags less than what you started.