[Roelven]

I've got two IKEA FLOAT Led panels on my ceiling, each 2400 lumen. The panels can be adjusted in Kelvin (2200 to 4000) and are dimmable, so when it's evening and I need to get some work done I turn them a lot more yellow to not mess with my sleep rhythm. I find making the room very bright helps a lot with waking up and focus, compared to when I had only one or two bulbs as lighting. It does take some getting used to as some have already pointed out here.

I've seen more people interested in this topic so I'm adding some recent links I've came across:

https://www.benkuhn.net/lux/

https://blog.plover.com/tech/corn-bulbs.html

https://meaningness.com/sad-light-lumens