Plug-in lamp dimmer, simply plugs in to a standard outlet. Works with dimmable LEDs and CFLs, as well as incandescent and halogen light bulbs features two lamp receptacles, when using two lamps, they will be controlled together.Lutron's patented Clear Connect Wireless technology sets the bar for reliability, works around corners and through walls. Quiet frequency band is essentially free of interference, so your Caséta wireless dimmers won't be affected by other wireless products. These dimmers also help dimmable LEDs and CFLs perform better than when used with standard dimmers.