Juhani suggests: Oct 26, 2015 at three:28 am The condition is that you need to get the many light to 1cm x 1cm spot. I've 100W led (8k lm) but I get extra light to monitor from one 1k lm Cree XM-L2. Next issue is definitely the slim wavelength sample of any led. The colour wheel in DLP projector dimms the light all the more.With Indigenous WXGA res