LED flasher 220v 220V LED Flasher circuit diagram. Operate the LED flasher directly from your home electric power. Please be careful when assemble and try this circuit since it connected directly to the mains high voltage 220V. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)