very rare older V33 strobe!!

Hey guys, I was just browsing fire alarms on ebay and I suddenly came across an older Space Age Electronics V33 remote strobe that has white lenses rather than clear lenses. Has anyone heard or known about this before?! So rare… The listing just ended today though.
http://www.ebay.com/itm/Space-Age-Electronics-V-33-Fire-Alarm-Strobe-Vintage-RARE-/321260228645?autorefresh=true

I have seen a lot of those before. Mostly on strobe plates though…