Part number:1 Item Weight:100 g Package Dimensions:2 x 2 x 2 cm; 100 Grams Batteries Required?:No welcome to my store , Hope you have a pleasant shopping trip! Control Interface:GND:GroundVCC:Power supplyDIO:Data input and output pinCLK:Clock signal pinSpecifications:Working Voltage:DC 3.3V-5.5VWorking Current:30-80mADigital Tube:4-digit common anode 0.56 inch digital tube with score point,white letters are highlighted;Display Color:WhiteWork Temperature:-25~85Work Humidity:5%~95%RHSize:47x28x13mmPackage List:5pcs X Digital Tube Clock Module5pcs X 8-Pin Curved NeedleNotes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow 1-2cm slight dimension difference due to different manual measurement. It Is A 12-pin 4-digit Common Anode Digital Tube Display Module With Clock Dots. The Driver Chip Is TM1637.It Only Needs 2 Signal Lines to Enable the Single-chip Microcomputer to Control A 4-digit 8-segment Digital Tube. The 8-level Gray Scale of the Digital Tube Is Adjustable. The Control Interface Level Can Be 5V Or 3.3V,universal Power Supply. It Has 4 M2 Screw Positioning Holes,which Makes the Module Easy to Install and Position,and Realize the Combination Between Modules. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied. It Is A 12-pin 4-digit Common Anode Digital Tube Display Module With Clock Dots. The Driver Chip Is TM1637.It Only Needs 2 Signal Lines to Enable the Single-chip Microcomputer to Control A 4-digit 8-segment Digital Tube. The 8-level Gray Scale of the Digital Tube Is Adjustable. The Control Interface Level Can Be 5V Or 3.3V,universal Power Supply. It Has 4 M2 Screw Positioning Holes,which Makes the Module Easy to Install and Position,and Realize the Combination Between Modules. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.