● COB with metal frame
● Built-in internal clock
● Built-in controller SBN1661G-M18 or equivalent
● 1/32duty cycle
● +5V single power supply
● LED B/L pins:19/20, or A/K or 1/2
● Option: LED, EL B/L
● Option: +3V single power supply

● COB with metal frame
● Built-in controller NT7107/NT7108 or equivalent
● +5V single power supply, with built-in negative voltage
● 1/64 duty cycle
● Option: LED, EL B/L
● Option: External negative voltage

● COB with metal frame
● Built-in internal clock
● Built-in controller SBN1661G-M18 or equivalent
● 1/32duty cycle
● +5V single power supply
● LED B/L pins:19/20, or A/K or 1/2
● Option: LED, EL B/L
● Option: +3V single power supply