tks to OP regarding this flashlight... just got back from the local Lowes and was able to get the last one on the shelf... the unit clam shell is marked '60X' as previously posted...

this is a beefy unit and could also be used (in a pinch) to thwart any untoward behavior by strangers...

i was initially disappointed when i inserted the batteries and the light would not power on... then i looked inside and saw that a small white sticker labeled with 'C' size batteries and orientation had lodged across the front terminal behind the light... a quick poke with a chopstick removed the sticker and i was rewarded with a truly brilliant focused light...

this is now my brightest flashlight in the house...

i wonder how long fresh 'C's will last? (edit: i now see the data in previous msgs - tks!)