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| Features of LED digit tube with four digits | |
| 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 |
| Company: | Dongguan Houjie Keming Electronic Factory |
| Address: | Houjie town, Baihao Industrial District, Xiangdong new village |
| Region: | Dongguan, Guangdong, China |
| Contact Person: | Ms. Jinhua Qi |
| Telephone: | 86-769-85933616 |
Led Digital Display