EMSOL Smart Home is an intelligent mobile app connects with retrofit Home Automation Smart Controller with Internet of Things (IoT) technology. All the smart controllers fits behind the existing switch board. User could Turn On/Off Lights, Fan, AC, Geyser, open/close curtains, alerts & indicates open/close door status, monitor the power consumption of the entire House, change RGB multicolor, Adjust light brightness & Create schedule or scenes through Mobile App with or without internet connectivity.