Do smart aquarium LED lights actually grow plants, or are they just for looks?

Specialist planted-tank threads draw a line between mid-tier app-controlled lights (Fluval Aquasky, Hygger smart bars) which are described as low-to-medium light suitable for easy plants, and higher-PAR options like WRGB units that better support demanding plants. Smart features are mostly about scheduling and color tuning, not raw PAR.