I have built a Diy lumenlab projektor for a schoolprojekt. but when i startet it upp i was to dark(the picture) .The lamp that i was using was a philips Master colour cdm-t 70W/942 .and its 6600lumens.
and a use a ballast from philips that they rekomend to that lamp.So how strong lamp do i need ??.i want to get as great resultes(good strong picture) but not to strong so it hurt´s in the eyes when looking at the movies
Btw i use 15" and the standard lens kit.
