If it is being used as an emergency luminaire as required by the building code, then I would require a replacement part as spec'd by manufacturer.
I understand your point Bob, and practically I agree. My job requires I look down the road to "what if someone can't see to get out of a building?"
I would not want my name on the permit approving something other than a spec'd replacement part.Especially when the forensics team finds out and it goes to court.
Then again, we don't require permits to replace luminaire batteries.
