Easy Guided Install: Neutral Wire is required, standard wall plate size. No need to understand complex switch wiring or master vs auxiliary switch configurations; The Kasa app guides you through easy step by step installation. Need 2.4GHz Wi-Fi connection. Input Voltage: 100 – 120VAC 60Hz. 0%-100% Dimming with Scheduling: Adjust desired brightness with the button or Kasa app. Tailor your lighting to fade on with a click of the switch or a double click to gently fade off the lights while your child drifts off to sleep. Set light schedules for waking up with a soft glow in the morning. Voice Control: Enjoy the hands-free convenience of controlling the lights in your home with your voice via Amazon Alexa or Google Assistant. Control from Anywhere: Monitor and control your lights status from anywhere with your smartphone using the Kasa app, whether you are at home, in the office or on vacation.