I have a 20/strip Nichia 757 2700K LEDs with CRI 90+ [1] taped on the back of each monitor, cost me around €25 with the appropriate power supply [2]. I control them with a Shelly RGBW2, which I bought for an additional €20.

I run them at between 25-50% brightness most of the time.

[1] https://www.leds.shop/products/conextbar-power-supply-module...

[2] https://www.leds.shop/products/meanwell-lph-18-24w-power-sup...