Disco effects of the system control circuit PIC16F628 on board but the basic parts 12 volt 100 watt lamp and a magnifying lens (one in the header extend more than you;)) PIC16F628 with stepper motor is controlled certain speed... Electronics Projects, 12V 100W Lamp With Magnifier Lens Disco Effect System "microchip projects, microcontroller projects, pic16f628 projects, " Date 2019/08/03