THIS PRODUCT REQUIRES A NETURAL WIRE AT THE SWITCH – IF YOU ARE UNSURE ABOUT THE INSTALLATION OF THIS PRODUCT PLEASE CONSULT A QUALIFIED ELECTRICAN Compatibility: Control via TCP smart app, Amazon Alexa, Google Home and Siri Voice activated: Handy when carrying something into a dark room TCP app: Control your devices globally from your smartphone or tablet by using the TCP Smart App Design: Touch control button with an elegant flat surface, lit by a gentle dark blue LED light Functions: Automate your lights while you are away or using a daily schedule (requires a neutral wire for installation)