Smart Lighting - Turn on and set white level (color temperature)

The official smart lighting feature does not support color temperature (cool white to warm white), as you noted.

There are a number of community – created smart apps that can do this. The easiest way to find them is to use the quick browse lists in the community – created wiki. There is a list there for lighting. :sunglasses:

http://thingsthataresmart.wiki/index.php?title=How_to_Quick_Browse_the_Community-Created_SmartApps_Forum_Section

Alternatively, I believe you can use core, although you might want to check in their peer assistance thread to make sure that it does support color temperature.