Smart Dimmer Switch, TESSAN WiFi Dimmable Switch for Led Lights, Compatible with Alexa and Google Home, Single-Pole, Neutral Wire Needed, No Hub Required Smart light dimmer switch by TESSAN provides easy and reliable control of your lights from the free Smart Life App. This dimmable switch includes everything you need to get started for simple and personalized control of lighting throughout your home. Experience superior dimming performance of dimmable LED bulbs, conveniently control lights by moving your fingertip on the touch panel. schedule lights to automatically adjust or even control lights and scenes with your voice.