Features: Integrated with 8digital tubes, capable of displaying numbers (0-9), suitable for various application scenarios such as counters, clocks, temperature displays. Each digital tube is equipped with LED indicators lights, allowing users to customize the display , enhances visual effects, and improve the intuitiveness of information transmission. Suitable for various applications like digital clocks, counters, game interfaces, and indicators, offering flexibility and practicality. The TM1638 module combines strong display, input capabilities, and high compatibility, making it excellent for electronic projects and prototyping. Supports multiple development platforms as for AVR, ARM, seamlessly integrates with multiple programming languages (C/C++.), and facilitates rapid development. Specifications: Component: Plastic Size: Approx.76.3x49.5mm/3x1.94inch voltages Ranges: DC7.0 V-13.6 V Input Power: 0.24 A Option Type:1pc,2pcs; for AVR ARM; Applicable scenario:Digital clock,counter， Package Includes: Package A 1pc TM1638 Digital LED Tube Display Module Package B 2pc TM1638 Digital LED Tube Display Module note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.