Building a bike light. 12v power source, 12v pre-built led fixture. Need SIMPLE way to make it flash.
I am building a cool bike light (which when finished, will be my first instructable). I have a 12v power source and a pre-made 12v LED trailer tail light that I am using for the light element. What I need is something simple and cheap that I can build or buy to go in between the power and the lights to make it all flash. Thanks in advance for whatever help that you can provide.