Nitecore T4K Keychain EDC Flashlight, 4000 Lumen LED Super Bright and USB-C Rechargeable with LumenTac Keychain Light

I wear this light on a neck lanyard so it is handy when needed. It is light and small enough not to notice. The 4000 lumen turbo blast is super bright and lights up everything. The lower lumen steps (1, 15, 65, and 200) are perfect for normal tasks. Just wish it came with a pouch.

You cannot legally take a weapon with you when you travel overseas, but I saw a suggestion on Youtube about using this as a defensive device that is legal to travel with. The reason it can protect you is that the full brightness feature practically disables an unsuspecting mugger with its intense brightness, which it will hold for up to 10 seconds. It will render someone almost blind for 20-30 seconds - enough time for you to get away from them. I tested it on myself and on my friends, who all immediately screamed: "holy crap- turn that off!" That's how bright it is. And oh yeah - it is a flashlight...

I'm not sure if I got a defective item. After a couple of minutes I've notice this flash light gets extremely hot. The lighting is great though.

I use it when I take my dog outside to do his business and it works wonders for illuminating my vast backyard. Planning on buying another one to keep in my travel bag for any emergencies.

Folks, no other flashlight I've seen has a lighted display screen that shows not only the current lumen brightness but how long the power will last at the current setting! Very useful intel to know. Along with 5 power levels and a max of 4,000 lumen turbo that is astonishingly bright let alone from a flashlight on my key ring! Remarkable! Plus, the internal Li-Ion power source is so convenient too. No need to swap out batteries, I just plug mine into my laptop while checking email. I have a large collection of flashlights but I never carried one with me even though I wanted to, until I purchased the Nitecore TUP 1,000 lumen flashlight 2 years ago. I've always carried it with me on my key ring since and now I've upgraded to this one with "4X the power" but no larger in size! That's incredible! As is the lockout feature that prohibits the accidental turn on of this flashlight! Ingenious! So ask yourself if it would be convenient to have a flashlight with you at ALL times (not in a drawer at home/work or in your glove compartment in your car because they're too bulky to carry), one that simply fits on your key ring (but is conveniently removable with a spring latch), multiple power settings and a max of 4,000 lumens!!! I have a problem though ...what do I do with the TUP 1,000 I replaced that looks brand new and works like it too? I only write reviews for purchases I truly believe in ...try this and you'll join me!

This is (or was in my case) a great little light! I'm in quality control and inspection and for me it was great! Guys at my work were very impressed with it when I would come out and use it to see in dark areas that were hard to see and get to with a larger light. You could really see everything with this light and no longer than i needed to illuminate it made it ideal for what I do. Alas it was too good to be true because a week after I purchased it I must have sat it down somewhere and now it's gone. Be aware that if you get distracted and lay it down you may never find it again. Best to keep it on a retracting key chain if your prone to losing things. I can say that I really enjoyed the little light while I had it and I think it is worth trying out. The battery held charge for a good long time even though I was using it constantly. I definitely would recommend for people who need a bright light. I'll miss mine but I learned a valuable lesson about not setting something so small down and then losing it. Especially when you consider how much it cost.

The media could not be loaded.  If you're on the fence about buying I would say absolutely buy this thing! Been carrying everyday for over 3 months and the battery life is exceptional. I'm not going to say it's ready to be used in a combat situation but for every day carry it'll more than do the job and everyone who sees this thing absolutely loves it. The turbo mode is absolutely insane at 4000 lumens for up to 10 seconds.

my only worry is it's waterproofing due to the coverless charging port