ITEM NAME:1x 0.36" inch 7-Segment 4Digit LED Display TM1637 Digital Tube Module 5V Hot Descriptio n Description: The module is a 12-pin display module of 4-bit total positive digital tube (0.36 inch) with time clock, and the driver chip is TM1637. Only 2 signal lines are needed to enable MCU to control 4-bit 8-segment digital tube. Module features: The display device is a 4-bit digital tube Digital tube 8 level gray adjustable The control interface level can be 5V or 3.3V 4 M2 screw positioning holes for easy installation Specifications: Size: 42x24x12mm Package Included: 1 *Â 0.36" TM1637 LED Digital Display Module Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ 1x 0.36" inch 7-Segment 4Digit LED Display TM1637 Digital Tube Module 5V Hot.Module features The display device is a 4-bit digital tube. Digital tube 8 level gray adjustable. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. We'd like to settle any problem in a friendly manner.