Brand N/A Model 4-Digit Display v0.9b Quantity 1 Color Blue + black + white Material PCB Features Thos is a common anode 4-digit tube display module with 12-pin with time display; TM1637 driver chip; Only need 2 signal wire to use singlechip to control 4-digit 8-segment digital tube; 4-digit common anode digital tube 8 segment adjustable grayscale; Can connect to 5V or 3.3V power; 4-MS screw hole for convenient to install Specification Power voltage: 3.3~5.5V Current (at 5V): 30~80mA; 4-connection pin: GND VCC DIO CLK GND for ground wire DIO for data output CLK for time clock signal; Red light; 4 PCS 2.2mm M2 screw hole easy to install Application 0.36" LED 4-Digit Display Module for Arduino English Manual/Spec Yes Other A product for Arduino that works with official Arduino boards. Packing List 1 x Module