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Incandescent vs. LED Lighting: What’s the Difference?
There's a glass globe, and inside of that is a tiny wire called a filament ... according to Dara Greaney, founder of LED Light Expert. There's no filament and almost no heat: "90% of the energy ...
Hackaday3y
A Custom Clock With LED Filament Hands
Aside from its aesthetics, this timepiece features some great design. A custom PCB acts as a hub for all the LED filament spokes. The onboard brains come in the form of an ESP32, which means it ...