You can ask Alexa to activate your switchs connected to your Contatto PPA account. Relays can function as smart switches, plugging into sockets, lamps and more. To use this Skill you need a Contatto WiFi module or a 4 relay Contatto Automation module, an account in the Contatto application and add these to your account. Then just connect your account with Alexa and your devices will already be shown.