for freak $ 16 you can not beat this 4d maglight ! I want a 3d maglight , but at the time it be twice the price as the 4d , it be kinda weird that it be that much more expensive , but I be very happy I get the 4d light ! now even though I love all Maglights and everyone else do too . . I gotta give it 4 Stars because of the actual light they put out . . everyone that have a maglite . or look for a maglight , you have to buy a drop in lead to go into you maglite . you will open you light and feel how big this light be , it be a big size without be Ridiculously Big . this be not something that you would openly carry at all time or on you person often , but this be something that you could store in you car or House and you would have a great weapon \/ light . . this be a big size but not crazy , it be big enough so that you would be able to actually hurt someone with this light . it be a great size to use as a Baton , and with it be 4D Batteries Installed , it be be no question that you could bust someone pretty hard , maybe break bone or crack skull in the process . -lrb- which be all very dangerous , and very illegal unless it be self defense , protect yourself , family , or property . . -rrb- but , if you be use this as a good big flashlight , you have to spend $ 10 - $ 15 on a drop in LED Upgrade for the light . . you will be very happy at the benefit of the $ 10 - $ 15 led over the stock bulb . . I go ahead and buy a Terralux Drop in LED and I be very piss when I find out that it would not fit into my light ... I do not know if it will fit most 3-4d maglight , and it just would not fit a certain year or model , but it would not fit into my 4d Maglight UNTIL , I take a Knife and start shave down sliver of the metal off of the inner circle Lamp Retaining Cap piece that Screws on Top of the unit -lrb- it screw the bulb unit into the flashlight to hold it in place -rrb- -lrb- it be a good thing that it be a Easy fix , it be just that the little retain piece do not fit over a tiny part of the Original Bulb Unit -rrb- the New LED Unit be a wider piece overall , so when you try and screw it onto the light , the Hole on Top be not wide Enough to screw over the New LED Bulb Unit , but by shave the Inner Circle out for a little bit , you can make the hole on the Retaining Cap Piece just big Enough to fit over the New Unit , and it will fit over and screw it down into the Llight , and it will still be able to fit over the Original Bulb Unit if you ever have to switch back ... !! so it be kind of a Quick fix to the Drop in LED , but you will be very happy when you screw you light together and turn on you flashlight , you will see a huge difference with the New LED compare to the original bulb . . so finally : this 4d maglight be a awesome light , the Weight and size be both pro and con . . it be big and heavy Enough that you will not carry this flashlight with you everywhere , and you will not probably use this light as you primary light either ... but . . you will Love this light and the amount of light that you get when you upgrade to a New LED , even as a Weapon for self defense , or home defense , it can be you main flashlight in you home or car but it be just too big to randomly carry it around . . get upgrade led for you Maglites and you will Love you Maglites even better !! 4 star , but 5 star with the Extra Drop in LED ...