Wosport AN/PVS31 Night Vision Goggles Dummy The dummy of the AN/PVS31 night vision goggles. It comes with an adapter that allows us to mount the set on a helmet. The model features a wide range of adjustments and diodes that, when positioned correctly, illuminate the lenses in green, creating an interesting visual effect (the diodes will automatically turn off when the PVS31 is folded). The set includes a dummy battery container along with wiring. The container can be mounted on the helmet using Velcro.