Juhani claims: Oct 26, 2015 at 3:28 am The issue is that you have to get every one of the light to 1cm x 1cm place. I have 100W led (8k lm) but I get more light to display screen from one 1k lm Cree XM-L2. Next trouble could be the slender wavelength sample of any led. The colour wheel in DLP projector dimms the light even more.This meant that ther