Application: 7 segment LED display is widely used in home appliances, instruments, auto parts, etc. High Capacity]: Designed with multiple card slots, this time card rack is ideal for large offices or warehouses, accommodating numerous attendance cards efficiently [Easy Installation Convenient to use, it can be driven under such low voltage, low current conditions. Common Anode: 12-9-8-6; Digital Display: 4 Digit; Digital Number: 4 Bit 7 Segment; Emitted Color: Red Common Anode 12 Pin 4 Bit 1.57 x 0.55 x 0.28 Inch 0.4 Inch Red LED Display 2pcs ; Item Number. 315948239115 ; Brand. Uxcell ; MPN. Does Not Apply ; Accurate... 4 Digit 7 Segment Display Aazon.co: Uxcell Coon Anode 12 Pin 4 Bit 7 Segent Display 1.26 X 0 Powered Anode Advantage: It can be driven to emit the light under low voltage and low current conditions. Working with Seven Segment LED Displays and Arduino Material: Plastic, Metal; Color: Black, White; Package Content: 2 x LED Digital Display Tubeï¼›Notice: It is recommended to use constant current not constant voltage, constant voltage will cause uneven brightness. Product Name: 7 Segment LED Digital Display Tube; Type: Common Anode; Model: 3941BH; Application: Widely used in home appliances, instruments, car accessories, etc. Also good for DIY and experiment Small body and light weight, with good impact resistance. Notice: 1. Please try to take some anti-static measures. 2. It is recommended to use constant current not constant voltage, as constant voltage will cause uneven brightness.