Answer: LED switch dimming power supply refers to the use of common wall switches commonly used at home and different switching times to realize different brightness of lamps. Commonly used are: four-section switch dimming (switch on 100% brightness, turn on/on the first 55% brightness, turn off/on the second 25% brightness, turn off/on the third 10% brightness, turn off/on the fourth 100% brightness. And cycle as the process) and three-stage switch dimming (switch on 100% brightness, off/on the first 40% brightness, off/on the second 8% brightness, off/on the third 100% brightness. And loop, such as process).

Advantages and composition of LED switch dimming: compared with LED silicon controlled rectifier dimming, it does not need to change the original power supply line, and does not need to add dimmer. It can realize dimming with common power switch, which has low cost, easy compatibility and high dimming efficiency.