In the beginning of Electric Light, all bulbs were 2500K (incandescent). Mercury Vapor lights started getting used outdoors, but eventually the lighting industr

In the beginning of Electric Light, all bulbs were 2500K (incandescent). Mercury Vapor lights started getting used outdoors, but eventually the lighting industry figured out High Pressure Sodium (blue-free), and Low Pressure Sodium (pure orange) for outdoor lighting. Halogens can be tuned, I think... Some Halogens are 3000K. Automotive halogens are much more orange/yellow than the halogens I have in my ceiling fan. The two essential tools for creating a tolerable light in our modern world are dimmer switches and the using safe color temperatures for LED light sources. > The most significant benefit I’ve noticed is that I can get back to sleep after getting up in the middle of the night—now that I’m no longer blinded by harsh overhead light in the bathroom. My bathroom has too much light most of the time. If I was "working on my makeup" the amount of light would be just right, but that's not me. I bought my first dimmer switch at Habitat for Humanity. It was the kind that has a little lever next to the on/off switch - basically you decide on the amount of light, then it's pre-set to that amount. The Habitat dimmer switch was okay, but I'd still walk into the bathroom from a black hallway and blind myself, as I never checked the light level before hitting the switch. On surveying the dimmers at Home Depot, I settled on the kind that starts "off", and gradually increases the light level. My other dimmer switches are the classic round-dimmer option, and one that has a button and a big 'how much light do you want' .... "slide": https://www.homedepot.com/b/Electrical-Wiring-Devices-Light-Controls-Dimmers/Slide/N-5yc1vZc34iZ1z17l41 https://www.homedepot.com/b/Electrical-Wiring-Devices-Light-... I have three bedroom light switches. Ceiling fan light has halogen bulbs with a slide dimmer. Outlet switch has a deep red LED bulb in a table lamp. There was a 5000K fluorescent above the closet that I replaced with a fixture from the thrift store, that has a mix of orange and red bulbs. The kitchen has horrible hanging lights over the stove. Someone installed 3000K LED bulbs. I replaced these with incandescents and halogens, and installed a dimmer, but they were all terrible. Eventually I found some 2000K "Amber" Philips LED bulbs. These work with my LED dimmer, and are tolerable. With the Amber bulbs at least you're not staring into an artificial sun. If it was up to me, I'd get rid of the hanging lights and go back to the 90's light canisters in the ceiling. tl/dr: Good lighting is invisible. Bad lighting forces people to stare into artificial suns. "5000K" light sources are for plants, NOT people. To protect eyes, slide dimmers that always start with the minimum amount of light are the greatest.