They recognised the advantage of having a wireless DMX link from the control position, situated on the terrace level of Trafalgar Square, to a dimmer location situated under the tree itself.
Martin Chisnall of City Theatrical London commented: "This is a classic use of wireless DMX. To bridge a physical barrier which otherwise would have taken a long and time consuming cable run through a public area. SHoW DMX was able to offer a fast, secure and reliable wireless link to replace this cable run. SHoW DMX's patented frequency hopping technology ensured the system worked flawlessly, even though several other WiFi networks were also present in the square."
Dave Knapp of Storm Lighting added: "This is the sixth year that we have been involved with the switching on ceremony. Time and the weather always seem to be against us on this job. SHoW DMX certainly made the rig and de-rig a lot quicker than previous years. I was very impressed with this stable, reliable system."
The tree is a gift from the city of Oslo to the people of London for their assistance during World War Two. It has been presented annually since 1947. The switching on ceremony was attended by the Mayor of London, Boris Johnson, and Norwegian Prime Minister Jens Stoltenberg.
(Jim Evans)