It is given for 125 lumens for its most powerful lighting mode, I did not see too that could give 125 lm. Well I can guarantee you that it illuminates very very strong, it is surprising that such a small object can enlighten so strong. I light my carefree portal which should be at 30m distance. I have to kick a little hard to imagine the intensity of lighting lamps capable of providing more than 900lm it just needs to be quite impressive.
Several light levels (4 to be precise), I personally still leaves the maximum, it is given to 2 hours of battery life in turbo mode and view the price of AA and above using rechargeable batteries I will not deprive myself its maximum lighting.
It is always very comforting in a somewhat difficult time (we go on camping and forgot the batteries recharged or what) to say that in its minimum illumination mode is given for 100 hours of battery life, light mode which will be enough to see where we are going. this corresponds approximately to the illumination intensity of an old lamp with standard bulb.
The cases did the job, nothing more and the price is cheap but not mind paying from the moment the quality follows. Which is the case here.