[0.62 lb] Well built. Very bright. Love having the red light.

[Aluminum] I had this light and my dad fell in love with it, so I bought one for him. We are both flashlight snobs, so we love good lights. I can't brag on this night enough. It is a small frame light but it is so bright. This light has a focused spot that carries a long way, but still provides a great pattern up close. The new model is a little longer than the old one, but the overall size is still OK. If you are looking for a small but powerful light, you can't go wrong with this one.

[0.62 lb] Great key chain light not much larger than the AAA battery it uses. You can carry this lightweight light in your pocket, purse, briefcase, or on your keychain and never know it is there. Nice light levels at all three settings.
Build quality is excellent. It has a good quality metal sleeve so you know it will last. It also has good runtimes at the lower levels and is easy to operate so you know it will be there when you need it. I carry mine in my pocket always.
Also, it makes a great gift.

[Aluminum] Im not sure what tech Fenix uses, but this seems far brighter on the max setting than any other light this size I have seen. I like the various methods of turning it on and setting intensity, it is impossible to light it up by mistake and kill your battery. So small and light it is practically unnoticeable as a carry.

[Aluminum] Usei em meus exercícios de light painting e possibilitou fotos espetaculares. A luz é bem forte!

[0.62 lb] It does run for about 25 hours, I have tested it (indoors) for about 23 hours and it is still going in fact it seems brighter than the one with a new battery but that can't be. It still can turn to a brighter setting, but not surprisingly it isn't as bright as the one with a new battery (see pictures).

It is fairly easy to operate, just twist on. Once on just twist on/off quickly to increase from 5 lumens to 25 lumens, and repeat to progress to 100 lumens. I find holding by the top and twisting with the bottom hand keeps my hand out of the light so I can see when it is off/on. [Not sure about one handed operation. If you tighten it just before it turns on, I can turn it on between my thumb and finger, with it nested in a fist like grip with my other fingers, with more effort I can turn it so it stays on. I usually unscrew it quite a bit to prevent drain, not sure that helps. But one handed would not be worth the bother, if this is what they mean.]

It can roll off a table it not attached to something, and the hole to attach it to something is very small, I think it comes with a wire ring though to put on it, or those camera straps with a final wire like ending will fit (what I am using right now)

I like the brightness levels and run times , but that varies by use/person. It is a bit bigger and heavier the rechargeable Nitecore I also bought, so by weight anyway a couple of those might beat out this one, or recharging it on a brick. This is about 1 oz with the battery and the Nitecore is 1/3 of an oz so not that much for either.

I have owned this for a couple of weeks so . . .

(I decided to test the runtime after thinking the lumens were not as bright as others but I think I was wrong about that, but I did do the test and took photos after each 5 hours of use, but the comparison at 23 hours (not dead yet) and new is probably the most meaningful)

[Aluminum] High light power.
Wide power options

[0.62 lb] I just bought 2 of these. Super bright and lightweight enough to not be a burden. Strobe is on demand and instantly and also remembers your last setting when you turn it off and on. Plus side is that you have to remove the battery to charge it, thus not having more opening for water or dust to get in. This cannot be turned on randomly in your pocket, so don't ask for a safety switch. Also to the guy that says that it wont turn on (brand new) you have to remove the protective paper in the battery compartment, charge it and tighten it ALL the way or it won't turn on. Going to buy a spare battery just for backup. You will not regret this purchase.

[0.62 lb] Great flashlight , the perfect size and weight .
Sits comfortably in the pen pocket inside my bag
Easy to operate Very basic funtions. Four modes and that's it
Highly recommended

[0.62 lb] just started using it. All has worked as spec-ed and like the variety of levels and colors. Wish there were an option for a red light with less brightness - using at night is too bright.