This little socket.io node simply returns the last colour set, to all its connected clients, in realtime - showcasing the power of the web (and node!).
Clone or download, put the public_html files in your public folder and update node.crowdlighting.com to your address in admin/index.html, admin/assets/js/main.js, lights/index.html.
Next up, run npm install in /node, when that finishes, simply run node bin/server and visit youraddress.com/lights or alternatively lights.youraddress.com to see the default #f4f4f4 colour. You should now be able to change that colour up at youraddress.com/admin
Sometimes a little demo says more than a thousand words.
Don't want to go through the hassle of installing? Check it out here: http://lights.crowdlighting.com/