The white plastic - Styrofoam with SSS from the mat db is mostly clear, but the acrylic in front of the LEDs surprisingly is not.
There is not a complete room around the lamp. Basically just a white wall and a studio HDR initially used to get more interesting reflections when I had the LED arms still made out of virtual gold ( a man can dream

The RGB LED emitters are really small, less than 1 square mm which does not help.
Rendered with Bidir MLT.
The thing is modeled to size and a little less wide than my 27" iMac.
The second image is a photo of a crude prototype to test out the electronics.
This highlights another issue. I've never been able to create renders with colors quite as saturated as in the photo. That may have to do with me not having a color calibrated workflow whatsoever.