maybe you be a cop or security guard , maybe you be a guy who live in a place where you can not carry a firearm , maybe you be just someone look to fill the ` use of force ' void that exist between shooting someone the bird and shoot they between the eye . any way you look at it , let not beat around the bush here ... anyone buying this light be do so for one reason only , the ` light ' aspect be totally secondary to that one reason . it be a club that double as a flashlight . so , how do we judge it on the objective criterion ? as a whuppin ' stick , it definitely work - so well that some ` kinder , gentler ' Police Departments do not even allow it anymore . Kind of a bummer that they discontinue the thinner 6c ; bar find one second hand and pay a real scalper price for it , the 5d\/6d be the pretty much the only ` in production ' option in the mag line for a `` big defensive flashlight '' but that be ok . unless you have very small hand , the 6d be perfectly controllable . it be big . really , really big . the light itself be about 19.5 '' long - a foot and a half - in total . when weight down with cel , it be heavy , too . you will want to tread lightly with this , as it definitely would generate enough striking force to fracture a skull , break bone . be damn sure you be legally justified to use it , if you ever do use it . you can hurt someone with it . it be do cut a pretty intimidating profile . walk around with one , it be almost as if you be carry a bat . in some situation , this be ok . in other situation , where draw attention to yourself be not the desire outcome , you would definitely want to leave this one home -lrb- in this regard , probably worth note that give its weight , this be essentially a two handed club . I be a large guy who have decent enough work strength - swing a six d-cel flashlight with one hand be pretty slow go . slow enough that you might risk you adversary grab on to it -rrb- as far as brightness , it be bright by ` bright enough ' standard . not bright enough to impress flashlight geek who obsess over marginally relevant technical detail on internet forum , plenty bright for average Joe to use for real world stuff . unless something have change , these be still ship with incandescent bulb , which be not anywhere near as bright as a good led -lrb- for example , the Maglite 3d lead torch be significantly brighter -rrb- ... of course , let we not forget the reason we buy this in the first place . the ` flashlight ' part be a secondary consideration , or , a primary consideration inasmuch as it allow we to carry it around in place where the same thing absent the flashlight function would be consider a unlawful bludgeon or club . if you want to juice the light aspect up to balls-out bright , terralux make a upgrade that turn the thing into a portable sun ... it be pricey - three time the cost of the light itself - but it do add a monumental upgrade in brightness -lrb- 700 lumen -rrb- , which can be quite practical . if you shine that into someone face , they be either turn away , or , if they be really determine to keep advance , they 'll be do so blinded and\/or with they eye close , at which point we option the ` club ' functionality . I do not throw around the five star rating too often , but this be a five star piece . right now , as of October 2010 , with Amazon free shipping on purchase over 25 , you can get one ship to you door for right at 25 buck . be this worth 25 buck ? hell yeah .