  500W bulb filament.
This is a light bulb filament from a 500W photo lamp of a type we no longer use since upgrading to 85W compact fluorescent bulbs which run much cooler.
Source: nick
Contributor: Theodore Gray
Acquired: 8 February, 2009
Text Updated: 8 February, 2009
Price: Donated
Size: 1"
Purity: 99%
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