Hi,Welcome to Shenzhen Print-Rite electric machinery and Equipment Co., Ltd.
How does the constant voltage LED drive power adjust the light? What is the dimming principle of the LED lamp?
The brightness of the LED lamp is determined by the current. The larger the output current, the brighter the LED lamp is, the more darker it is. When the constant voltage driving power supply is used to supply the LED lamp and adjust its brightness, the voltage potentiometer knob can be adjusted to change the output voltage of the power supply and thus change the current.
In addition, both the constant voltage source and the constant current source can realize the dimming function of the LED lamp, but in order to output current (LED light brightness) more stable, it is suggested to choose constant current source.