1.Advanced PWM digital brightness dimming technology; 2.No flicker during dimming; 3.can be used to control varies LED Iights. FEATURES:* 0-100% dimming, knob type stepless dimmer controller.* 256 gray lever, with soft and steady lighting, no flicker. * PWM digital dimming and without inrush current design, which make sure the long life of the LED lighting.* Constant voltage dimmer controller, ...