"Blanche" wrote in message ...
Dale wrote:
If you do change the wingtip bulbs take care. The glass lens used is
easily dropped as you remove the retainer and is expensive to replace.
Been there, done that. G

And under no circumstances touch the new bulb with your fingers! Use
gloves or something (shirt tail?) Oil & sweat from your fingers is
not good for the bulb. In fact, if you have the box the bulbs come
in, that warning is printed (or should be) on the box.

It's not going to be a problem for most position like bulbs. They have
regular glass envelopes and they don't burn hot enough to make a
difference. Quartz-halogen bulbs are a different story. The quartz
envelope on these will soften from the oils in your hands. Note that
this applies only to instances where you touch the envelope directly.
Your Q4559 bulb actually has a glass enclosure around the whole
thing (so that it will fit into the same form factor as the traditional
4559). You couldn't touch the envelope if you wanted.