Devices like switches and all other home automation appliances work as traditional standalone methods and you will not lose any functionality at all as all the smart algorithms are downloaded to the devices themselves. However, you will lose the ability to control or to know the status of the devices using your mobile Home APP while you are away from Home. However, when the Internet is up and running, all devices will be back online and can be smartly and remotely controlled from anywhere in the world without losing the configurations of the products.
