In 2010 we installed the first LED backlit, large format advertising site in the world. We’d often thought about such large sites but the idea seemed too big to be possible. However, once we did the ROI calculations, we realised how compelling the economic case was. Even in 2010 , the ROI was less than 3 years and now it is less than 12 months – no wonder almost every large format site in the world is either already LED or soon to be retrofitted. This was a very proud day for the Bright Green team.