On 12/13/2013 06:16 AM, William Sommerwerck wrote:
"Joe" wrote in message
.. .

I thought it was just the opposite -- and I surmised that the reason was
that the bulb was the [principal] heat source, and putting it ABOVE the
base allowed most of that heat to dissipate via convection.

Agreed.

Why would the tube heat up if it just holds fluorescing gas? The heat is
mostly in the case I betcha.