Description: Comes with 128 LEDs and AIP1640 chip welded on the board. 4Pin interface (GND,VCC,SDA,SCL). I2C communication. Through controlling the AIP1640 chip, thus control the 128 LEDs on the panel turn on or off,displaying the images you want to show on the LED panel. And the brightness of LED displays can be set. For easy wiring, it includes an HX-2.54 4Pin cable. Specification: Operating Voltage: DC 3.3-5V Power loss: 400mW Oscillation frequency: 450KHz Driving current: 200mA Working temperature: -40~80 °C Package Includes: 1 Piece 8x16 LED Dot Lattice Board 1 Piece Cable
