You can use the Hero Attribute tiles to display any value in large font (and optionally a secondary attribute in the footer of the tile).
You can find more details on how to use the Hero Attribute tiles in this post:
Currently, the available attributes to select from in a Hero Attribute Tile are limited based on the core device capability (with temperature being one of those). I’m working on an update to the Hero Attribute tiles for Hubitat users which should make all of the attributes available for use which would give you access to lux and other values.