I made a light panel using 5 colors of SMD LEDs and 30 LEDs total that runs of a 3 pin fan header on the mobo. I use it in this video to demonstrate lighting of an acrylic reservoir I made.
There are many colors of LED available. I can put together a light panel to your specification that is intensely bright, has a low draw, and does not create heat like CCL tubes.
Obviously this sort of lighting is not limited to reservoir lighting, but can be used to spot light or illuminate any part of your PC.
The UV lighting is very strong compared to some CCL tubes I have tested and creates a more intense glow from UV reactive parts.
Mixing light colors allows for a lot of in between colors that are not available in LED like pink, magenta, aqua, teal, light blue, light green, grass green, butterscotch. etc. Mixing say yellow and orange will yield a lighter brighter orange than a typical LED orange color, likewise mixing red and yellow yields a different orange than an orange LED.
I am fascinated by lighting effects with acrylic and try out new things all the time. I would be happy to build a lighting effect for you. PM to discuss.