You can use TRÅDFRI gateway and IKEA Home smart app to create several groups of light sources and control them in different ways.

You can use STYRBAR remote to control up to 10 LED light bulbs at a time - dim, switch on and off, and step by step change from warm to cold light.

By dimming the lighting, you change the mood in the room.

Psst! 2 pcs AAA batteries are required for STYRBAR remote control. Sold separately.