If you’ve noticed that King’s Cross tube station has been a bit brighter recently, you’re not wrong—it is.Transport for London (TfL) recently replaced most of the station lights with newer LED lights that produce more light while consuming less power. The upgrade is expected to generate energy savings of 1400 MWh per year, equivalent to powering 500 homes a year and up to £455,000 in operational savings in the first year. As LED lighting tends to last longer than tr