I believe aT-8 will fit in the fixture without changing the sockets then
change the ballast over. I have done many fixtures with out changing the
sockets
"Chris Friesen" wrote in message
...
Arthur Shapiro wrote:

What is likely to have failed to cause such an early failure on these
bulbs? I assume the ballast, but would like an expert to confirm. I'm
interested in purchasing electronic replacements, while realizing they
are more expensive than traditional magnetic ballasts, but an intimidated
by unfamiliar concepts such as "ballast factor".

While you're at it, you might consider switching to T8 bulbs. You'll need
to replace the bulb holders as well, but you'll get electronic ballasts
automatically.

Chris