Love Maglite flashlight , only have one minor issue with this one . I do not normally write review , but want to share this for anyone else who have this problem . the flickering\/won ' t turn on problem very well could be the tailcap assembly -lrb- screw off back part -rrb- . there be 2 metal clip that need to make contact with the barrel . if you aa lead maglite be not turn on , try bend these 2 clip out and make sure they can make contact with the barrel . Mine have this problem , and once I bent these clip out it have work just great . I hope this help someone out there .