Circuit - AC Powered White LED Strings. AC-LED. Back AC-powered LED A long time ago I found a little schematic on internet on how to power a LED from an AC Line.
I tested and modified it a little so now it works great. AC LEDs. - Jose Pino's Projects and Tidbits. Since I was kid, I was fascinated by the light emitted by the LEDs.
I believe, I still fascinated by it. Well, in fact, everything that emittes light is my fascination. A LED is defined as "light-emitting diode: diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used" [Princeton University].