CC and CV represent constant current led driver vs constant voltage led driver .They are usually associated with an LED or some kind of indicator. When using a smps led power supply, the required voltage and maximum current are usually set.
Most types of load need constant voltage driver to operate, so if the "CV" LED is lit, it means the works fine with your load.
CC and CV are usually associated with an LED or some kind of indicator. When using a led screen power supply, the required voltage and maximum current are usually set. When the load is connected, two situations may occur:
The current required by the load exceeds the maximum value you set. The maximum load requires the maximum current you set
In the first case, the current is limited to the value you set, and the voltage will decrease accordingly, this is your CC. In the second case, the most important thing is voltage, so it is CV.
