I was very pleased with these dummy PVS-31's for my Escape From Tarkov inspired BEAR KIT. The green glow was something that also surprised me when I first opened the package. Overall its a pretty decent dummy model that can be used for cool photos and such. Only problem I have is that the battery to power the green light isn't replacable which is a bummer. I'm going to be switch helmets soon to a Fooliage Green OPS Core Maritime helmet to match my Ranger Green Agilite Plate Carrier. Another thing is I would recommend using a good G24 Mount Bracket for your helmet as plastic ones like in my photos break very easily. Overall these Dummy Models are great and would highly recommend. ??