| Features of LED digital display/led display/7 segment LED display | |
| Model | KEM-3941-AB |
| Digit height | 0.39 inch |
| Digit number | four |
| Tube chip color | super red |
| Face color | black |
| Emitting color | red |
| Dominant wavelength | 627.50nm |
| Luminous intensity | 45mcd |
| Forward voltage | 1.9v |
| Reverse voltage | 5 v |
| Recommend used current | 20mA |
| Operating temperature range | 25~75 |