If a LED video wall is around, indoors, you may need 10-20 watts per projector easily.
It also depends on your color plan. If you have a 5 watt all green projector, it can be 3-4x more visually effective then a similar RGB at the cost of being horribly boring after a few minutes. It also depends on the eye's spectral response curve, which varies with ambient light.
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The rule in Ion Laser Days was minimum of 5 Watts indoors RGB per projector plus 5 mW more for each person in the room. (Pythan's Rule)
Pythan never had to deal with LED walls or Moving Lights,, however. Pythan probably could strike a deal with the Lighting Director for some "blackout time", which is unlikely to happen with today's LDs. LD vs Laserist is often like Cats and Dogs fighting, unless you have an "enlightened" LD on your side. These days the LD will often want to control your system via DMX-512 and shunt you off to the side.
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Home toy, small church, small school gym with controllable lighting, indoor birthday party or wedding reception, a couple of 2 point 4 watt systems and a good hazer will suffice. Then add in a small fog machine to add texture. it helps if projectors are identical in power/performance/scan speed and from the same batch.
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Morrrrr Power!!!!!
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Steve
Last edited by mixedgas; 08-15-2018 at 08:27.
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...