Wzxksoac 5X Mini Dual 12 Level Indicator LED Light Bar VU Meter Stereo Amplifier Board Adjustable Light Speed Board with AGC(A)

3. Audio input through the TI signal isolation, the maximum to avoid the single-chip high-frequency interference to an audio circuit in series 2. The feature-rich, user can freely adjust each light bar and the main of the real speed of light, with the most suitable for their own display 1. The minimum volume, PCB the size of 80 x 14mm LED module area : 58 x 14mm 4. different colors of light alone provided a current limiting resistor. a perfect match.