this flashlight have very average brightness . the beam that it produce be very uneven . battery life be average . basically , it be the Chevy Caviler of flashlight . if you be interested in top performance , check out flashlight from Fenix , Streamlight or Surefire . they will cost more , but there be a night and day difference . a similarly size flashlight that produce 10x the brightness with a very smooth and even light be the surefire g2 .