2000 hours does not sound like a lot. What are the failure modes on a EL
display? Its not like it has a filament that burns out

Bob



The phosphor depreciates, the same happens with fluorescent lamps, the lumen
output steadily depreciates over the life of the lamp (but power consumption
remains the same) as the phosphors age. This is why most businesses replace
lamps after a set amount of time rather than waiting for them to fail
completely. Places that do that turn into a cave because half the lamps are
so depreciated at any given time. EL phosphors wear out even faster.