A bright blue 8x8 LED matrix display. There are led matrix driver platform Rainbowduino . Specification Pixel Array: 8X8 Color: Blue Luminous Intensity: 40mcd Package Dimension: 38mmX38mm Reverse Voltage(Max): 5V Forward Current(Max): 25mA Peak Forward Current(Max): 100mA Power Dissipation(Max): 100mW Operating Temperature(Max):-35~+85℃ Storage Temperature(Max): -35~+85℃ Lead Solder Temperature(Max): 260℃ for 5 seconds For any technical support or suggestion, please kindly go to our forum.