LED street lights can be dimmable. Two common ways to change the brightness of the light are linear dimming and digital dimming. Linear dimming changes the brightness of the LED lights by changing the current in the circuit. And it needs a variable resistance to realize the control. Digital dimming requires a pulse-constant-current power supply and provides pulse current by applying the technology of PWM.
Plus de lecture: Solution de système de contrôle des lampadaires intelligents



