LED Strobe Light Circuit Diagram Strobe Light Circuit Diagram and Explanation: The complete circuit diagram is shown in the above image. You can either build them on a breadboard or solder them to a Perf Board. The explanation of the circuit is given below. Circuit Explanation: The heart of the strobe light circuit is the 555 Timer which is operating in Monostable mode. The Simplest Strobe Light Circuit - Making Easy Circuits Jan 10, 2018A very simple strobe light circuit can be built using a single transistor and a high bright white LED, in conjunction with a flickering LED. As may be seen in the diagram, a simple single transistor driver is used for illuminating the strobe LED lamp, which is controlled by a self oscillating flickering LED connected at the base of the driver transistor.