This is a small size led flasher built with the 555 timer IC that is powered from 2 x 1.5V batteries. The circuit can be used as a flashing metronome, dark room timer, memo-reminder or other similar ...

My Own White LED Flasher. Inspired by the Joule-Thief concept, again I fabricated another cheap and cheerful Joule-Thief circuit, which is nothing but a 5mm White LED flasher, running on an input of 0 ...

I remember making a flasher with a LM3909 back in the late 1970s. It was very efficient. In regards to this circuit, I can think of one that is even simpler, although not so stable.

Picking the right turn signal flasher for LEDs. Features. Events. How-To ... which is not enough to heat the internal strip and open the circuit. ... not all of them are for LED applications.