The device working principle of the application circuit shown in Figure. When used as a flashing light control, as long as the controller with DM's ④ side voltage can cause an intermittent load DM H flash. In this case a piece of music using integrated circuit IC, the music IC output signal O / P and the controller DM, ④ terminal connected to the power IC's positive and negative termination DM,1,5 terminal. IC into dedicated music flash chips, can also constitute a beacon light, municipal road construction lights, special lights and so on. If you hold a dance in the family, but also the controller DM,4,5 termination on the plug, insert the tape recorders and other audio output jack, this time with the music light the rhythm of H will blink. A DM can drive controller 10A kilowatts lanterns on the job.