Power supply
The power supply ensures that the LED works as it should. When choosing a power supply unit, you must take into account how much power is needed. If it happens that the power supply unit is not powerful enough, generally no other harm will happen than the fact that the installed thing does not work. Depending on the LED lighting, there are both constant voltage and constant current power supply units. In the case of constant voltage, as the name suggests, the voltage is constant, i.e. unchanged. According to how many LEDs are connected, the current also increases. This is also the most common solution. The sign is CV (Constant Voltage) On constant current power supplies, the voltage changes. The advantages of this block come out when it is necessary to use a large number of LEDs. Then a power supply can be used to limit the current of the LED, and less parts are needed elsewhere. The symbol is CC (Constant Current) These two blocks are not interchangeable.