microtivity IS412 7-segment LED Display, 4 Digit Red Static Common Anode (Pack of 2) 2x 0.56-inch 7-segment LEDs 4 Digits, Static, Red, Common Anode Forward Voltage: 1.8V 36 pins. Pitch: standard 0.1" (2.54mm). Please refer to product image for the connection diagram. Instructions included in product packaging.