The dimmer switches for LED lamp is make of shock resistant and weather resistant Rotating knob design ensures high durability, even with frequent use The continuous dimming function not only help to increase comfort, but also reduce power consumption Whether you want to create a comfortable atmospheres in the evening or need bright light during day, you have completed control This dimmer is suitable for LED lamp, light bulbs, lamp and many other types of lamp ( it is not suitable for 12V lamp Light switches dimmable turn the knob to adjust the brightness from 0% to%, without fixed levels limitation, none flicker