Family karaoke 0K lighting design of a variety of methods to control circuit, the control circuit described here is a kind of four-way light output,
loop jump, speed controllable practical circuit. Microphone to pick up speed to jump the lights with acoustic signal strength varies, acoustic signal stronger, faster jump lights, whereas the slower speed. Kara OK home lighting control circuit is shown. The circuit consists of a power supply circuit, a control circuit and audio amplifier.