tom, do you mean...

A: I'd like two bulbs of 40 watts

B: how many?

A: 40

B: 40... of what?

A: yes please

anyway, 100% light on a 100% surface makes 100% in the render. None of them has any physical meaning.

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Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though