Double Filament
The two filaments form complete loops and are held in place by tiny threads of glass attached to the inside wall of the bulb.
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Uploaded on May 10, 2008
Taken on May 10, 2008
Double Filament
The two filaments form complete loops and are held in place by tiny threads of glass attached to the inside wall of the bulb.
226
views
0
faves
0
comments
Uploaded on May 10, 2008
Taken on May 10, 2008