Fluorescent lamps are powered via a 'ballast' circuit to limit the current supply.
They may contain capacitors which could store sufficient charge to power the lamp for a short duration after the supply voltage has been removed.
(
Happosai _,,,,_(O ; o)_,,,, Mon 25 Jan 2021, 22:31,
Share,
Reply)
I'd thought of a capacitor, but it did it repeatedly.
My guess was some sort of current leakage allowing it to recharge. It died a few weeks after.
(
FeralCatMan Unusual disease collector., Mon 25 Jan 2021, 23:54,
Share,
Reply)