I want to know the most economical way that would work best in a take out restaurant to project their full menu above the counter so customers can easily see and order. I would like it to project about 3' x 10' across and above the counter. Is LED lighting projectors economical and powerful enough to do this. It will be on about 8 hours a day. The room has ambient light but not direct sunlight. When projecting a file I create to be 3' X 10' or a 3 X 10 ratio ...... how do you block out the rest of the projection ...... or is there any?