[ 504 Hour] Small enough to fit anywhere, just large enough for the hand. Simple on (with three levels of brightness), simple electronic lock off. Fast recharge. Light, solid.

[ 504 Hour] Excellent tiny product. Working great. Definitely recommend it. I like it very much.

[LED] I was looking for a small, long-lasting flashlight for around the house, camping, and outdoor stuff. The replaceable cell makes me feel better over something completely sealed as I hope this thing will last a lifetime. Those were my main criteria while shopping.

Did I need to spend as much as I did? No. Do I regret spending that much? No. I dropped this thing onto some metal grate about 3 days into ownership and there's merely a scratch on the belt clip. The light didn't flicker from the shock or anything. Additionally, The ergonomics for actuation is nice. Once learned, switching brightness levels is very straightforward and the main power button can be used as an on/off or a momentary switch.

I haven't gone through one full cycle of battery on any of the settings, but I also haven't needed much more than level 2. Looking forward to many more years with this!

[USB-C] A family member had one of these in the desert and at night it could light up things three states away. I am kidding, of course, for those of you lacking sensors. I've got a bit of a flashlight habit and this one is still my favorite.

And the reviews for this? You're knocking it because it doesn't come with a charger. Big deal. Lots of products don't come with chargers these days.

And one person knocking it because of TOO MANY brightness levels? !? Really? Please stop reviewing anything.

Some people have too much time on their hands.

[ 504 Hour] This light is a handy size, fits well in a pocket or purse or can be clipped to something. Low is a good brightness for looking in purse or bag, getting a key into a lock, etc. Medium and High work great in a large room or outdoors. Fast and easy to recharge; I can start out with a full battery every time and not have to worry about spare batteries.

[USB-C] it is one of the best head flashlight made by FENIX ,
last long time on a single battery easily charged with a USB-C connector, 1400 lumens at top end of it and weights only 140gr with battery.....

[ 504 Hour] I was looking at another light on sale and it was out of stock. The B&H rep (Pinchus) suggested this light instead. The price was a little higher but i'm so glad i got this light. I love the square design, the strong magnet, the belt clip, lanyard, right angle head etc..

[LED] I use this for night photography with their Red filter (B&H # FEAOFSRD) in order to save my night vision. Works great at 14 Lumens. When needed there is more power than i'll need. perhaps enough for light painting..but I haven't used it for that yet. I was surprised that it didn't have a focus adjustment, however, after using it I don't think it is necessary. the light is round and fairly smooth at all powers. For me the best feature is the ability to set the power you want with the front switch and have it remember that until you make the change change. Previous review wondered why the didn't include a wall charge. Any charger with a USB port (computer, iPhone, Garmin etc.) works fine and I have a whole drawer full of those. Heck, my car even has a USB port. BTW the red filter mentioned above does not say it fits this flashlight, however it is a perfectly snug push on fit.

[5000 mAh ] I bought this to replace a lost Surefire Titan Plus. Not quite as slim, but the 4x higher lumen rating, lockable switch, battery indicator, and the USB-C rechargeable battery are great to have. My only quibble so far is that the charging port cover can be hard to open if it has been pushed down into the flashlight body. Otherwise, perfect for me.

[ 504 Hour] I bought this as a Christmas gift for someone who rides their bicycle at night in a rural area so there are no additional street lights.  They love the light and it said it works perfectly for them.  Plus its easy to recharge.