This is a basic, 4-digit 7-segment display - red in color. It has a common anode. The display features one decimal point per digit, and individually controllable apostrophe and colon points.
The LEDs have a forward voltage of 2.1VDC and a max forward current of 20mA. The hardware interface is sixteen (two rows of eight) through-hole pins.
Dimensions:
Overall Display: 40.18 x 12.8 mm (1.58 x 0.50")
Digit Height: 10mm (0.39")
Documents Links:
Datasheet Link: http://www.electronics123.net/amazon/datasheet/YSD-439AR6B-35.pdf
Display Example Code: http://www.electronics123.net/amazon/datasheet/_7Seg_Example.pdf
![Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - Red [ADA1270]](https://cdn11.bigcommerce.com/s-t8bvbs505h/images/stencil/500x659/products/4231838/4491199/51OwK9UNicL__26721.1596687524.jpg?c=2 "Adafruit 1.2\" 4-Digit 7-Segment Display w/I2C Backpack - Red [ADA1270]")
![Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - Red [ADA1270]](https://cdn11.bigcommerce.com/s-t8bvbs505h/images/stencil/500x659/products/6694172/7067931/51OwK9UNicL__93267.1599845529.jpg?c=2 "Adafruit 1.2\" 4-Digit 7-Segment Display w/I2C Backpack - Red [ADA1270]")