A short trailer showing how Factorylux® SWISS-made filament light bulbs are manufactured. The beautiful tungsten filaments are hand-threaded around the stem and supply wires before the stem is fused into the bulb. The bulb is evacuated or filled with an inert gas and the cap fixed. Every bulb is tested before it leaves the factory.

See the full length film and find out more here: urbancottageindustries.com/blog/making-filament-light-bulbs-video

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