the amount of illumination this small light provide compare favorably with that from a double-d-cell flashlight use a krypton bulb , which be probably what most folk expect from a general-purpose light . that say , compare one to another be tricky because of difference in the beam . a standard flashlight project a strong center spot surround by a broad halo of rather dim and often uneven light . however , with its much smaller reflector and led , the Mini-Maglite produce a strong center spot with a halo that be both much narrower and considerably brighter than its counterpart . therefore , one of the way I compare the two light source be to aim each at the white ceiling of a darkened room while observe the amount of reflect illumination of the furnishings . unlike the yellowish light emit by incandescent bulb , the LED in the Mini-Maglite provide a brilliant , white light that seem to be quite close to daylight in color temperature . it do not suffer from the distinct bluish tint common to many high-brightness led . the light output from this led light be much greater than that of the incandescent version of the Mini-Mag , which I also have . I measure initial current drain from a set of fresh aa battery at around 500ma , compare to somewhat over 300mA in the regular Mini-Mag . the company claim the light use a 3-watt led -lrb- as rate by supplier -rrb- , but it would appear that even with a new set of alkaline battery the actual energy use will not exceed half that rating . Furthur , my measurement indicate the power will likely decline by half again once the battery have start to become weak . of course , one can not expect miracle from two small battery and the reduction be likely a balance between high output and power usage . I would expect several hour of strong light , with slowly diminish output until the battery be exhaust . like the regular version , this mini-maglite be operate by unscrew the head slightly to activate a internal switch . furthur rotation will focus the beam somewhat as the reflector move outward . there be not a great deal of difference in the lead version , and very much twist simply reduce the overall light output . the head may actually be remove and use as a base to support the light in candle mode . this be make possible by the elimination of a lanyard like be attach to the tail cap of the standard Mini-Mag . as owner of several multi-led flashlight , I have learn that one big advantage to have a single led be the narrow , project beam it provide . that feature come in handy when you be walk at night and want to see some distance ahead . the light in the sp2201h package come with a holster for carry the flashlight lens-up on a belt or perhaps hang it from a nail . two Duracell battery be also include . I have read that other folk have encounter problem with the switch be intermittant , and I must admit that the flashlight do not work well with another brand of battery I install during testing . mostly make in the USA , the flashlight carry a limited lifetime warranty that exclude burnout of the led module . improper installation of the battery may destroy this item , so be very careful . if have a slender light that weigh less than a third of the typical flashlight , yet illuminate just as well appeal to you , then I think you 'll be please with the Mini-Maglite LED .