ENER-J’s Smart Wifi Switches do home automation the easy way: our Wifi Switch seamlessly replaces your old wall light switch and works with any one-way connection light. Easily installed and very economical. Neutral wire required and minimum 33mm box. Simply download the free ENER-J Smart app and control your lights and small appliances from anywhere in the world, right from your phone. No hub or subscription required. Electrical Rating 120V/15A/60Hz/1800W.