In a message dated 5/17/04 12:56:49 AM, aljordans@COMCAST.NET writes:

<< 'garage wall comparative test'.

The Silverstar was noticably brighter and a little whiter (though that may
also be due to the age of the older bulb) >>

This is not really much of a comparison because, as you noted, the efficacy
of a lamp (especially an incandescent) diminishes with age.  Comparing the
manufacturer's intensity mappings of the two lamps might prove helpful, although
the pyschovisual response illicited by the spectrum of each lamp is altogether
another matter.

George