It's a wall switch. The app (where I set up which switch controls what) it only seems to let me set it to an entire room... I don't want to divide my bedroom into "two rooms" just to satisfy an arbitrary app requirement, ya know?
Edit: I open the app, tap "Settings", tap "Accessory setup," tap "Hue dimmer switch," scroll to the "where" setting, and the only two options I've got are "Home" and "Bedroom" - and they're checkboxes. I can't actually select the individual lights within those rooms.
Anyone who has lived with someone else in the same bed can imagine more than one morning routine. I'd love to stick a switch next to my SO's lamp and one next to my lamp so we can properly manage each of them individually. All I can figure out how to do is turn on/off all the lights in the bloody room...