The best reactive light kit has to be Nanoleaf's 4D Screen Mirror Kit. While we remain very much three-dimensional beings, we have been treated to some immersive and responsive monitor backlighting.
The Harlowe Blade 5 & 10 Bi-Color & RGB Tube Light Kit is available for $399, though you can purchase the Blade 10 as an individual unit for $299, while the smaller Blade 5 costs $199. The LEDS have ...