Juhani says: Oct 26, 2015 at 3:28 am The problem is that you might want to get every one of the light to 1cm x 1cm area. I have 100W led (8k lm) but I get far more light to monitor from one 1k lm Cree XM-L2. 2nd challenge is https://brooksuiud07429.bligblogging.com/37553615/not-known-details-about-epson-projector-bulbs-near-me