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Which filament bulbs are you referring to? I was under the impression that filament was what we had before led bulbs.
by kyriakos 4y ago
Which filament bulbs are you referring to? I was under the impression that filament was what we had before led bulbs.
- rootusrootus 4y agoLED filament[0], not tungsten filament. [0] https://en.wikipedia.org/wiki/LED_filament https://en.wikipedia.org/wiki/LED_filament