C04 - LED lamp ST64 gouden spiraalvormige LED gloeidraad
C03 - LED lamp A60 gouden spiraalvormige LED gloeidraad
Carbon-filament lamp, a sample of the element Carbon in the Periodic Table
The Resurgence of Carbon Filament Bulbs - Eurolux Lighting
Paulmann Rustika carbon filament lamp - a modern lamp largely identical in design and structure to original carbon filament lamps. Repro, modern Stock Photo - Alamy