Coelux has a number of different products, the higher end products like the LC45 you can see a sun in the sky that is pretty amazing. You are looking at around €50,000 after shipping and installation. I didn't end up installing the product because it also requires about 1m of ceiling depth and I didn't want to give up that much space overhead. I ended up using Innerscene which looks better, cheaper, more compact, and has dynamically changing color and moonlight at night.
LIFX Beam - Stylish smart home enabled accent light beams
Orro - Never think about your lights again.
The Brilliant Control - Easy access to lighting and other smart home products
Sunn - A smart light fixture that brings the changing sun indoors
Noon Smart Lighting System - Transform any room with professional-quality lighting
HuePlay - Sync your Hue lights to Spotify's now playing cover art.