"A new generation of streetlamps somehow made city nights seem darker."
Ah, the low-pressure sodium lights. The actually put out more lumens, but because of the light wavelength, they seemed darker.
I HATE sodium lights.
I was very, very happy when the electric company in my area replaced all of the sodium lights with new LEDs.
I, personally, am very much a fan of LEDs. I have very few incandescent or fluorescent bulbs in my house anymore.
I'm also very much a fan of that nice, warm, yellow glow from 2,700 K lights. It's so freaking warm and inviting. I have those bulbs in my living room and my bedroom.
I also have four daylight bulbs in the ceiling fan in my bedroom if I need really bright white light for anything that I'm doing, like sewing a button back on or reading instructions for my CPAP.