Already in bed but forgot to switch off the lights downstairs? Don't interrupt your comfort! Install Shelly Plus i4 with a 4-button Shelly Wall Switch for Smart Relays close to your bed and manually control your Shelly Duo bulbs. You can easily group all the lights at home and use Shelly Cloud app to set various actions based on a combination of clicks. For example: > 1 click on button 1 - switch off/on Shelly Duo bulbs in the bedroom > 2 clicks on button 2 - switch off/on all Shelly Duo bulbs > 1 click on button 3 - switch off/on Shelly Duo bulbs only on the 2nd floor