First, the output current of the dimmable constant current led driver is constant, and the output voltage changes with the VF value of the LED. This is in line with the characteristics of the LED and keeps the luminous brightness constant. The LED is greatly affected by the current change, and the constant current drive can be extended The life of the LED; in addition, the luminous efficiency and stability of the LED can be improved, and the light attenuation of the led driver 20w can be reduced.

Second, by using a constant current source to drive, there is no need to connect a current-limiting resistor in series with the output circuit, and the current flowing in the LED is not affected by changes in external power supply voltage, changes in ambient temperature, and deviations in LED parameters, so that it can give full play to The various excellent characteristics of LEDs, in addition, if the LED module is added or removed, the constant current source will automatically adjust the voltage within the voltage range designed by itself, without manual adjustment.

   Third, if the constant current led driver is used to supply power to the LED lighting equipment, the current flowing in the LED will be automatically detected and controlled during the power supply operation, so there is no need to worry about excessive current flowing to the LED at the moment of power-on, or burning the power supply due to a short-circuit of the load.