What is PWM Dimming LED Track Light?

LED Track Light adopts PWM Dimming (pulse width modulation dimming) technology to realize the principle of non-flicker dimming, which can be described from the following aspects:

PWM Dimming (pulse width modulation dimming) Technology Principle

PWM Dimming technology is a way to adjust LED brightness by controlling the switching frequency and duty cycle of the LED driver. The basic principle is as follows:

High Frequency Pulse Control: PWM dimming uses high frequency pulse signals to control the brightness of the LED. The frequency of these pulse signals is usually so high that the human eye cannot detect the blinking of the LED.

Duty Cycle Adjustment: By adjusting the width of the pulse (that is, duty cycle), the average brightness of the LED can be controlled. Duty cycle refers to the proportion of the high level time of the pulse signal to the whole cycle in a period. When the duty cycle increases, the average brightness of the LED will also increase; On the contrary, when the duty cycle is reduced, the average brightness of the LED will be reduced.

The Realization of Stroboscopic Dimming(Flicker free dimming)

The core of stroboscopic dimming is to ensure that the LED light source does not produce significant flickering during dimming. PWM Dimming technology enables strobo-free dimming in the following ways:

High Frequency Pulse: Due to the high frequency of the PWM signal, the human eye cannot detect the blinking of the LED. This is the basis for achieving strobo-free dimming.

Precise Control: PWM dimming provides precise brightness control ranging from 0% (full dark) to 100% (full light). This precise control helps reduce flickering during brightness changes.

Smooth Transition: By adjusting the duty cycle, you can achieve a smooth transition of LED brightness. This helps to avoid flickering caused by sudden brightness changes.

The Application of PWM Dimming Technology in LED Track Light

PWM Dimming technology is widely used to realize non-dimming in LED guide lights. The following are its application characteristics:

Flexibility: LED rail lights can move freely along the track and adjust the Angle, and PWM Dimming technology allows these lamps to maintain a stable brightness output during dimming without flickering.

Energy Saving: By precisely controlling the brightness of the LED, PWM Dimming technology helps to achieve energy saving results. When lower brightness is required, the average power consumption of the LED can be reduced, thus saving energy.

Comfort: Strobo-free dimming helps reduce eye strain and visual discomfort and improves the comfort of the lighting environment. This is especially important for people who need to work or live in a lighting environment for long periods of time.

All in all, the principle of LED Track Light using PWM Dimming technology to achieve strobe free dimming is to adjust the brightness of the LED by using high frequency pulse signals and precise control of duty cycle, and avoid flicker phenomenon through smooth transition. This technology enables the LED guide lamp to maintain a stable brightness output during dimming, while achieving energy saving and comfort improvement.