I would give it 3.5 star - no half star allow - 3 star be more accurate than 4 . the construction quality of the flashlight be just ok - not very good . it might be easily break - compare with my 3 d-battery maglite buy in 2005 , this one be not on the same bar . the beam be very bright , and by a single twist of the switch , it reduce to 1\/3 . the operation be simple and nice - twist to turn it on , quick twist again for reduce beam , again for flash , and again for so . Main problem that I give it 3 star - after turn it on , I hundred ton of micro air bubble in the front glass . for a $ 20 maglite flash light , I will not stand with it . I mainly use the small flash light to examine dust and fungus inside lens and other equipment - the air bubble give I a illusion of dust . this be undesired . I be now look for another high quality , compact flashlight .