I’ve never heard of ‘God Lights’ before, but they definitely sound interesting.
“New Doctor Who God Lights Developed especially for event on 24th November 2013
The God-Light is an advanced wireless hand-held lighting unit for dancers, performance artists, clubbers and more. It is a wireless, motion sensing, customisable LED lighting accessory allowing you to create your own unique stunning light show. You can write text messages, draw pictures and animations while dancing. You will also be able to wirelessly sync with your friends’ God-Lights using Bluetooth LE to create even more amazing effects.
Chris is also going to develop flashing lights for the 8ft Tardis that is being purpose built for this event to simulate the real Tardis.”