after hear all of the tale of mag-aa durability , etc. I be extremely disappointed , the aa model be very dim compare to the more modern personal light I own . it isnt a dependable light at all , after one 2 foot drop to a carpeted floor the bulb blow out . I replace the bulb with the spare , and it blow out when I put fresh battery in . my recommendation be buy one of the new l.e.d personal lights-no bulb to burn out , longer battery life , much better beam quality , lighter and more dependable .