this light put out about 200 lumen , it be much brighter than any of the surefire 2 cell light such as the e2e , etc -lrb- which start out at 60 lumen and then drop off as you use they -rrb- . it also do not eat expensive lithium battery -lrb- at anywhere from 1.50 to 4 buck per battery -rrb- . Surefire make 3 and 4 cell and even 6 cell -lrb- lithium -rrb- which be brighter , but again you be feed they expensive lithium cell . of course , this be a old technology light that be as big as a club and heavy , BUT IT 's BRIGHT and run for 2 hour on a charge -lrb- by then you would have spend 10-20 buck on battery feed a surefire -rrb- . the new Magchargers have a spare bulb in the tail , and be much brighter than any of the alkaline d cell maglite -lrb- those be all very dim , or get dim after half a hour -rrb- . it be a great general purpose light , you just can not put it in you pocket .