However, seeing there are so many photographers in here, you should know
best.

I was wondering how sensitive a light meter is and if it would work inside.
I just replaced a flouro light bulb (lasted 2.5 years and saved me over
$80!) and noticed that the new bulb is now somewhat brighter despite being
identical in make and consumption and I'm curious if the bulbs lose
efficiency over time and by how much.

--
Alan Erskine