"In this case the light bulb is not at all going to be simulated well by a point light."

I'm trying to understand why. Because of the artificially high intensity close to the source point? Or did you mean... by an area light?

Thanks

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)