Just one year after the Millbank Tower light, DeadMau5 returned to London with Nokia for a visual and audible “This is Lumia”. Every inch of the Flat Iron up to the public can enjoy the Christmas decorations a little early and very festive. The operation was intended to highlight the capabilities of the Nokia Lumia 820 bright and 920 and their ability to capture 5 times more light than other smartphones in the dark.

http://youtu.be/ovKlWsRALJg