Feit Electric 40-Watt A19 Dimmable Incandescent Amber Glass Vintage Edison Light Bulb with Tungsten Filament Soft White (6-Pack) 40AT19/6 - The Home Depot
Efficiency of Incandescent Light Bulbs Vs. Florescent Light Bulbs
Globe Electric 60W Vintage Edison G30 Vanity Tungsten Incandescent Filament Light Bulb, E26 Standard Base, 245 Lumens - Amazon.com
What are the Different Types of Tungsten Wire? (with pictures)