Feature:1. LAMP BEAD AND CHIP: LED light board come with 128pcs LED beads, with AIP1640 chip, stable and reliable2. SUPPORT CONTROL: You can use the MCU to communicate with the module through I2C, control the AIP1640 chip control module of 128 LED on and off, so that the module on the lattice display the pattern you need3. WIDE APPLICATION: Can be used to make led screen, led wall, advertising board, widely used in hotels, KTV, bars, outdoor advertising signs, Christmas or wedding decoration4. TECHNICAL PARAMETERS: Working voltage from DC3.3-5V, power loss for 400mW, oscillation frequency is 450KHz, driving current is 200mA5. TEMPERATURE RESISTANT: Operating temperature from 40~+80, high and low temperature resistant, communication mode using I2C communicationSpecification:Item Type: LED Matrix Control ModuleOperating Voltage: DC3.3-5VPower Loss: 400mWOscillation Frequency: 450KHzDriving Current: 200mAOperating Temperature: -40~+80Communication Method: I2C communicationBoard Size: Approx. 32 x 72mm / 1.26 x 2.83in.Package List:1 x Light Board