Notification if I forgot to turn off a light?

[Thomas (Thomas Vos)]

See the following:

Notifications upon dimmer press? Ifttt

Unfortunately the Hue bridge cannot send commands to other devices. So that means the Hue dimmer switch can only control devices connected to the same Hue bridge like lights. An alternative solution could be to continuously poll the Hue bridge, but that will have a delay and will slow down the Hue bridge. This is something Philips Hue would need to add support for first.

The only way to get this working is using polling. In your case a delay would not be that bad. It is not possible at the moment in Hue Essentials but it is on the wish list for future development.