Not a lot if any id have thought... plasma is high voltage low current... LED low voltage high current

You're pretty right Gav - my display (as calculated currently) is about 1A5 at 5V

What this display does of course is it gets rid of the need for ALL of the high voltages.

Before someone picks up on this as well - I have already organised a SEPERATE supply of the 5V so that it will NOT load down the existing boards.