Recommended
Electronically controlled LED lamps glowing when off.
Why people recommend it
Big Clive explaining why LED bulbs glow or flicker faintly when switched off, linked whenever leakage current through a dimmer or switch puzzles someone.
Watch for: Mains related; explanation rather than a repair guide
In their words
See BigClive's Electronically controlled LED lamps glowing when off which explains this well.
Transistor on electronics.stackexchange.com, Mar 2020. CC BY-SA.
I think Bigclive did a video sort of like this on youtube.
Alex on electronics.stackexchange.com, May 2016. CC BY-SA.
