"CV" in the name of "constant voltage" and "CC" in the name of "constant current". They are usually associated with LED power supply or some kind of indicator. When using a power supply, it is normally necessary to set the required voltage and maximum current Most types of loads require a "CV" to operate, so if the "CV" LED is lit, it means the PSU is working properly.When you connect the load, two things can happen: First, when the current required by the load Is greater than the maximum value you set, the PSU becomes the current source, and the current is limited to the current you set and the corresponding voltage drop. This is CC. The second is that when the load requires the maximum current you set, The constant is the voltage, so it is CV.

For example, consider this case: set the voltage to 12V and set the maximum current to 1A, then connect a load that exceeds 12Ω. That is to say, it takes up to 1A, so it is a constant voltage power supply, and the Current can vary between 0A and 1A. If you then connect a lower impedance load, a higher current is required, but now the current protection is activated, so the current is limited to 1A, and it is constant, and the voltage varies between 12V and 0V.

The Smarts Electronics's constant voltage drivers are designed for a single direct current output voltage. Most common constant voltage drivers are 12VDC or 24VDC. Constant Voltage Drivers switch this alternating current voltage (VAC) to a low direct current voltage (VDC). The driver will Always maintain a constant voltage no matter what kind of current load is put on it.

More information if you would like to know Smarts Electronics’s led power supply, please login https://www.smarts-electronics.com/ Or contact with Mr. Steven(skype: steven821228 mail:sales1@smartselectronics.com)