Very
limited supply
Since these VFDs are over 18-years-old new old stock, no warranty
is attached
but returning or exchange accepted if returned within 10 days
from the date of purchase.
Original
part number was
FG405A2but it is no longer available. This
B2 version uses same PCB,
so it has the same spec. as A2 version unless glass shape.
Try
to exchange the dim displays in your Xpander or M12 or get some
for the future needs.