In the dead of night I had to fill my generator with high winds and pouring rain, not easy task with a large traditional flashlight and a heavy gas can. The balancing act caused me to spill gas till I used this little beauty. Extremely powerful small and it lite up the whole corner of the house, allowing me to easily fill my generator. Battery life is good but I kept it charging 5 days without power it came into play I came to rely on it as my other flashlight died as my battery stock ran out. As far as water resistance it got wet in the high winds moving the rain drenching me and the flash light. I recommend this flashlight as it is far more then a keychain light if need be.I wear this on my hard hat as an inspector in a large factory, the environment is very dirty and extremely dusty , my gloves are constantly dirty and I press this thing on all thru out the day for inspection, no problems at all its hold up very well , battery life is pretty good especially when considering the brightness as well as size this is a very good light for your hat, I've used it out in the forest at night and even the lowest setting is very bright in those conditions, definitely would by againVery bright compact light. Easy to charge via 5V power source: computer, non-Apple cell phone charger or car adapter. The highest illumination setting sucks the battery, but burns brightly doing this. My only gripe is that it's easy to turn it on in your pocket- like pocket dialing. Too many times I've found it shining through my pants. It would be nice if the manufacturer could modify the controller chip so that the on button had to be pressed rapidly twice or some other scheme to eliminate false activation. Nevertheless, I liked it well enough to purchase a second as a gift.Surprisingly bright, comes with a clip to attach to the brim of a hat or whatever. I use it for 10 minutes every night and it requires a recharge about every 4th night. Been ussing it for about 4 months now.This is a great little light. It’s compact and virtually unnoticed weight in my pack. It comes with a hat clip & D-ring (both removable). Its great for dog walks at night. I wish the battery life was longer. The package indicates 30 min. on highest setting. This is pretty accurate time estimate.This small flashlight works well for it's small size. It can be carried using a carabiner of you don't want to use the clip.Since I have not used this flashlight much I cannot rate it yet . One thing that I have experienced is it gets HOT very quickly at high beam setting. ! So I am not too pleased with this product .& only plan to use it sparingly due to this problem .I can hide it anywhere. It’s a strong light for the size. Having the clip is a fantastic idea to clip on to the cap.Bonne petite lampe de poche rechargeable. Fait solide. Chauffe rapidement et par conséquent, ne reste pas en mode pleine intensité plus de 15 minutes, puis diminue progressivement d’intensité. Reviens au mode intensité maximale une fois refroidi. Bon pour service léger/intermittent. Je la recommande.Yes this flashlight is really bright and really comfortable to use and very small however it only last for an hour on the lowest setting. If you don’t mind the short battery life it’s a great flashlight to have for emergencies or for walking in the woods!It's indeed a Good Buy With such Super Bright Key Chain. Also Nice Design. Highly Recommended!La recarga de la linterna dura 5 minutosIt’s a compact light but battery capacity is much smaller than claimed in description