Read more U-SWITCH 602-F | SMART LIGHT SWITCH Smart Light Switch U-SWITCH 602-F (3-Way Switch) is a smart IoT light in-wall switch. 1 Set (Contain 2 units of 3-way Smart Switches). A set (Two 3-way Switches) is necessary to make the circuit work properly. Easy hard-wiring and Safe installation. Control Your Lights from Anywhere. Voice Control Compatible with Alexa and Google Home assistant through our U-WIGO. ESTIMATE SHIPPING: Due to high demand and COVID-19 contingency, delivery can take up to 45 – 60 days to reach your destination.