Juhani says: Oct 26, 2015 at 3:28 am The situation is usually that you should get each of the light to 1cm x 1cm area. I've 100W led (8k lm) but I get a lot more light to display screen from one 1k lm Cree XM-L2. Second problem would be https://epson-projector-bulb-pric55443.blogs100.com/37287944/how-much-you-need-to-expect-you-ll-pay-for-a-good-replacement-bulb-epson-projector