Does the LED have to have a built-in driver?
Would be great, but would be ok to have separate driver board also. Would be great if controllable with MCU.
What's the cross-sectional area of the optical fibre?
Optical fiber diameter 3mm. I can use lenses up to 10mm.
How important is colour mixing?
Must be at least RGB.
What are the power supply requirements?
20mah-1A, would be great if controllable with MCU.
Dimensions?
LED diameter from-to 3-10mm.
Cooling?
Better solution without cooling.