Bulb Filament Material: What You Need to Know | Electrical4U
Feit Electric 60-Watt Equivalent ST19 Dimmable Spiral Filament Amber Glass E26 Vintage Edison LED Light Bulb, Warm White ST1960/S/LED/HDRP - The Home Depot
Improving the Efficiency of Tungsten Filament Light Bulbs
Estimation of the filament temperature of an incandescent lamp from an energy balance in steady-state conditions | Journal of Thermal Analysis and Calorimetry
Globe Electric 60W Vintage Edison G30 Vanity Tungsten Incandescent Filament Light Bulb, E26 Standard Base, 245 Lumens - Amazon.com