The C by GE On/Off Smart Switch-Paddle adds smart bulb functionality to traditional bulbs and keeps smart bulbs smart. The classic design blends seamlessly with other paddle switches. The smart Wi-Fi switch adds out-of-home control scheduling and scene-setting to traditional bulbs. When C by GE smart bulbs is installed the smart switch allows app or voice control even when power is turned off at the switch. Pair the Smart Switch with C by GE Smart Bulbs in other fixtures like table lamps and control all your lights in the room from one wall switch. C by GE On/Off Smart Switch wirelessly connects with other C by GE Smart Switches so you can control the same light fixture from multiple switches without a travel wire even if the switches are on different circuits. Simple DIY set up. The Smart Switch connects directly with Google Home and Amazon Alexa devices without a hub required. Neutral wire--usually a white or gray wire--is required.