Feature
1. COB with metal frame
2. 5x7 dots with cursor
3. Built-in controller KS0066 or equivalent
4. + 5V single power supply
5. 1/16 duty cycle
6. LED B/L pins: 17/18, or A/K, or 13/14
7. Option: LED, EL B/L
8. Option: +3V single power supply
9. Option: negative voltage (built-in, external)