I need a small compact flashlight for work and after check several review , I decide to get this one . I love the adjustable light feature simply by turn the lens -lrb- knob -rrb- at the top of the flashlight . it adjust from a wide view to a nice sharp concentrated beam . it also have a `` candle '' feature . the lens unscrew from the base . you set the lens on a flat surface and then set the base `` inside '' the lens so the bulb be expose give you the `` candle '' effect . I have only use it a few time so far so I be not sure how fast it will eat up battery , but for the light itself - I would buy again .