I saw many of you work in offices or at institutions and from my experience the lighting in these places is worse than poor in my opinion. I work in a home office but was still scathed by the light that i encountered. Basically fluorescent tubes, led tubes, incandescent bulbs, halogen lights, fluorescent bulbs. I do not have much experience with florescent tubes other than I took them out of my office and they were flickering but the ballast was old.
I have measured flicker from many of these soruces and anything powered by an AC current is flickering from my experience. This can be tested with the VISO flicker app on the iphone.
I mean i understand the hate against LEDs, but without PWM and being driven by DC current, 95CRI, and at 6500 kelvin the light can be opposite of depressing for someone that spends majority of there time indoors compared to other light sources. But many led tubes, bulbs, lights that are "flicker free" still convert light 120AC current (in America) to DC very poorly. Flicker is still there but not visible to the human eye but it can be shown with the proper tools. To test this, hold your smart phone camera up to any bulb in your office, then point it at your screen. both will probably show flicker.
I realize light in the blue wavelength spectrum can be bad for the retina. Anything between 400 and 430 nanometers from what little i have researched but I am going to not worry about it. Most monitors I understand are calibrated at standard 6500K temperatures at the factory.