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Comment by imp0cat

13 hours ago

To put it bluntly, it could also be that your LED light sources are low-CRI junk.

I use 90CRI LED lights where I study. They are Philips' non-flickering, dimmable, High CRI bulbs, yet my classic 25W halogen table lamp still provides a far better reading experience. The spiky spectra of LED lights are not comfortable for eyes as a full-spectra incandescent light, let it be classic or halogen.

  • 90CRI isn't good enough to replicate an incandescent bulb in my experience. Something in the high 90's can be much better (but admittedly hard to find). And of course you may want to match your preferred color temperature too.

    • Actually, this is the best I was able to find. The prices increase almost exponentially when you try to go to higher end of anything, and I was not in a mood for digging whole city and the internet for a single bulb. A Philips' 90CRI bulb is already a great upgrade from an 80CRI bulb, so I ran with what I was able to find in a pragmatic time frame.

  • For reading black & white text, incandescent lamps are perfectly fine.

    However, if your book has color illustrations, a high-quality neutral-white LED lamp is better than any unfiltered incandescent lamp.

    A standard white illuminant with filtered incandescent lamps would be even better, but such lamps, as they were made a century ago, were extremely good space heaters, which may prevent their use for reading a book.

    • The OSRAM halogen lamp I use has special filters, and looks greenish when it's turned off, so it might not be a "brute force, let everything through", 25¢ halogen lamp. The bad thing is it's not being produced anymore, but I have a couple of spares.

      I went through university with the same lamp/bulb, so that combo doesn't create the unwanted reflections much. Also, I still print everything in color, because a good color choice still boosts understandability of the material at hand.