1. weeraa

    Mix L and N to COB LED 220V

    What happen if we mix L and N to 220v (AC) COB LED? Will it be burned out?
  2. S

    RC snubber circuit for 220V AC solenoid valve

    Hello fine people! I've got a 220v AC solenoid valve which I want to control through a 5v relay module with rasp pi. As I've understood, I have to add an RC snubber circuit in series in order to protect the relay. And this is where I need help. I need to figure out what resistor and what...