Turn down the lights and see the night x.com/IDADarkSky/sta…
San Fran converting 18,500 streetlights to 3000K LED. Reducing light pollution and energy use. Way to go! bit.ly/sf-ledView quoted post on X
San Fran converting 18,500 streetlights to 3000K LED. Reducing light pollution and energy use. Way to go! bit.ly/sf-ledView quoted post on X