the LED dimmer is practical and easy to install on a cord, it varies the light intensity of your dimmable LED bulbs with a power of 1 to 60 W. This rotary dimmer for LED can be used with almost all dimmable LEDs in 220 V/230 V. Our dimmer varies the light intensity continuously and without annoying noise or buzzing. The LED dimmer (cord dimmer, cable dimmer) has a rotary knob to control the light continuously and to turn the light on/off. When you turn it on and off, the button makes a clicking sound. With our cord dimmer you can easily dim the light intensity of any lamps that are not fixed provided that the LEDs are the same. -these use are dimmable. So you can adjust the light in your living room as you wish according to your mood. Important note: The cord dimmer is not suitable for: traditional halogen, low-energy and incandescent bulbs, transformers, appliances and LEDs with electronic ballasts.