@phooky one of my 2021 resolutions was "1 blog post per week". I averaged less than 0.1 per week.
@kingannoy i usually wire the flyback and filter cap like this: https://electronics.stackexchange.com/questions/580819/relay-protection-circuit
@operand what are the official rules? This is a quick hack for the festival, so it may not be 100% standards conforming.
@kingannoy does your relay board have a FET and flyback diode? in general I leave anything with mains power to fully enclosed, EC/UL certified products...