●Character LCD 8x2
●COB with metal frame
●5*7 dots with cursor
●Built-in controller ST7066 or equivalent
●+5V single power supply
●1/16 duty cycle
●LED B/L pins: A/K, or 1/2, or 15/16
●Option: LED, EL B/L

● Character LCD 8x2
● COB with metal frame
● 5x7 dots with cursor
● Built-in controller ST7066 or equivalent
● +5V single power supply
● 1/16 duty cycle
● LED B/L pins: 1/2
● Option: array LED B/L
● No Negative Voltage Option

● Character LCD 16x1
● COB with metal frame
● 5x7 dots with cursor
● Built-in controller ST7066 or equivalent
● +5V single power supply
5. 1/16 duty cycle
● LED B/L pins:15/16,or A/K or 1/2
● Option: LED array / edge B/L,EL B/L
● Option: +3V single power supply
● Option: negative voltage