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.Most Led power supplies are constant current sources, which means that the output current of the power supply is constant, and the voltage changes within a certain range.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. Normally, the input of the LED drive power includes high-voltage power frequency AC (ie city power), low-voltage DC, high-voltage DC, low-voltage Frequency AC (such as the output of an electronic transformer), etc.
This emergency invert kit accords with GB17945-2010, it is suitable for all 5-20W (Max 22W) LED lamps with internal IC driver