Do you mean the 'filament' LED bulbs. It's a nice thing the manufacturers seem to have pulled off there, especially because it seems to have eliminated a whole

Do you mean the 'filament' LED bulbs. It's a nice thing the manufacturers seem to have pulled off there, especially because it seems to have eliminated a whole set of power electronics at the same time. https://en.wikipedia.org/wiki/LED_filament https://en.wikipedia.org/wiki/LED_filament