Kind of a random aside, but I never realized how obnoxious LEDs were until I got a studio apartment and started sleeping in the same room as my homelab / workstation / networking hardware. Electrical tape saved me, but wow. You sure can produce a lot of light with a milliwatt of electricity :)

(And yes, my workstation has a clear case and LED RAM. Yes, I'm an idiot. Whenever Windows applies an update late at night, I wake up if it turns back on. I don't know what I was thinking when I built that thing, but never again.)