Introducing the 4 Node Retrofit Smart Switch, an innovative and convenient way to upgrade your home's lighting system. This retrofit switch is designed to be easily retrofitted into your existing switch boards, allowing you to control your lights with your smart phone via wifi/bluetooth. Made in India with a robust design. The retrofit switch also allows scheduling, and even works without internet. Plus, enjoy great after sales support and 1 year warranty for peace of mind. Upgrade your home with the 4 Node Retrofit Switch today!