The only reason to use individual LEDs instead of fibre optic is if you want the max brightness to be high enough to work as room lightning; fibre optic will not achieve this, but a sufficient number of 2mm LEDs will. I'm considering doing this for my garage, but it would be a huge amount of tedious soldering to manually install several thousand LEDs. Using strings of LED fairy lights (running behind the false ceiling panels in a random pattern) would save time but wouldn't look as good as they're all 5mm or bigger: to get a star effect you'd really have to use the 2mm tower LEDs. In fact you can buy 'LED star curtain' for parties & events, but it is definitely just a lighting effect, not even semi-realistic due to using a small number of oversize LEDs (compared to a fibre optic star ceiling).
Last edited by bitphase; 04-19-2019 at 07:11 AM.