I have this one Amazon.com It’s at least a year old… probably 2-3+, my memory is horrible.
Probably accurate at the estimated 160 lumens. Having acquired all these new lights in the past few months… not worth it at all. It’s comparable to this light New Utilitech 4xAAA Light at Lowe's USA, Go get one. but the utilitech has more output…
Honestly I would just get a Jacob A60 or similar throw light and mount that on the shotgun.
200 lumens isn’t enough for me outdoors, unless it’s pitchblack. Even then the throw is measly on these little things. For indoors in relatively small spaces I would say they’re okay. As for the ones linked from DX… I have no idea.