It is also good for lighting up lamps too. Anton posted a wall sconce in another thread where he used this technique and it actually looked like the lamp was really lit and casting light on the wall.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi