The LED drive power supply is a power converter that converts the power supply into a specific voltage and current to drive the LED to emit light. Under normal circumstances: the input of the LED drive power includes high voltage power frequency AC (ie city power), low voltage DC, high voltage DC, low voltage and high voltage. Frequency AC (such as the output of an electronic transformer), etc.
The output of the LED driving power supply is mostly a constant current source that can change the voltage with the change of the forward voltage drop of the LED light.
