That is mainly a choice of the installer, you can get LED lighting in 2700K. It's a regulation update to insist outdoor night time public lighting be 2700K or

That is mainly a choice of the installer, you can get LED lighting in 2700K. It's a regulation update to insist outdoor night time public lighting be 2700K or lower. The sweet spot for lumens per watt is about 5000K I think, so there is also a power efficiency angle which is probably why a lot of these new lights are way too blue.