This is only for AC220V. AC110V Country Cann't use.

The fluorescent display has the characteristics of high brightness, high definition, and bright color. It is suitable for multimedia speakers and amplifiers.

  With simple mono driver circuit and transformer

(Screen size 140X 40mm)

The wiring method is simple:
Two red wires are connected to the 220 volt power supply, and one green and one black wire are connected to the amplifier output to the speaker port.