Item Type: 8 Digit Display Board_x000D_ Material: PCB_x000D_ Wide Operating Voltage: 3.3V to 5V_x000D_ Digital Tube Model: 0.36 4 digit common anode 1WORKING PRINCIPLE: The use of 2 pieces of 595 drive digital tube, need for a single chip computer 3 ways 10 ports, display according to the digital tube dynamic scanning principle 2STABLE AND DURABLE: LED display module is durable, possess stable performance, and can be reused for a long time 3SMALL AND PORTABLE: 8 segment digital LED display tube is light weight, possess small size, easy to carry and use 4APPLICABLE SCENARIO: The LED display module can be used for a mechanical equipment, such as advertising signage, advertising background, control panel, LED matrix display, DIY kit, etc. 5RELIABLE PCB: Digital tube display module adopt excellent PCB material, with reliability and miniaturization, good maintenance and interchangeability 1 x 8 Digit Display Board 1 x Connecting Cable