Just wanted to point out that the choice municipalities have made for street lighting is not really an LED technology limitation as much as different evaluation

Just wanted to point out that the choice municipalities have made for street lighting is not really an LED technology limitation as much as different evaluation criteria. For example, while sure, OSRAM advertises/sells street lighting LEDs that are broad spectrum (131 lm/W) [1] they also sell single-color LEDs like these amber ones that are actually even more efficient (141 lm/W) with an emission range almost entirely within 600-640nm [2]. This is almost as tight a range as LPS (which looks like about 580-610nm) [3], and it beats out HPS considerably [4]. [1] https://www.mouser.com/new/osram/osram-street-lighting-solutions/ https://www.mouser.com/new/osram/osram-street-lighting-solut... [2] https://www.osram.com/os/ecat/OSLON%C2%AE%20SSL%20150%20GA%20CSHPM1.23/com/en/class_pim_web_catalog_103489/global/prd_pim_device_2402538/ https://www.osram.com/os/ecat/OSLON%C2%AE%20SSL%20150%20GA%2... [3] http://www.flagstaffdarkskies.org/low-pressure-sodium-lighting/ http://www.flagstaffdarkskies.org/low-pressure-sodium-lighti... [4] https://en.wikipedia.org/wiki/Sodium-vapor_lamp#/media/File:High_Pressure_Sodium_Lamp_Spectrum.jpg https://en.wikipedia.org/wiki/Sodium-vapor_lamp#/media/File:...