SINGLE POLE/3-WAY DIMMER SWITCH: Convenient operation—combines ON/OFF paddle switch with separate slider for dimming controlEASY TO INSTALL: Screw-pressure-plate backwire terminals save time, space and money. And Works with standard 3-way switches and wiring.LIGHT DIMMER SWITCH: White LED glows when dimmer is OFF for easy location in the darkENGERY SAVER: Upgrading your standard switch to this dimmer will save energy and extend bulb life by reducing the amount of electricity required to power the lightsUL Standard and cULus certified