This is a functional strobe light built around a Harbor Freight 27 LED flashlight. the flashlight is marked in the $5.00 range, but is usually on sale for much less.
None of the values listed in this project are absolutely critical, they are just what I found works best, so have fun, experiment, explore.
This project involves a flashing light. DON'T BUILD if you have epilepsy, and if you know someone with epilepsy, DON"T SHOW THEM. I take NO RESPONSIBILITY for injuries, damages, arrests, alien abductions or other harmful effects of this project, if they do arise. this is a safe project for most people to build, provided that they don't have sezures when exposed to flashing lights, don't burn themselves with the soldering iorn, and don't cut themself with the knife.