The common items in this case were “filaments” from LED light bulbs, those meant to mimic the look of clear-glass incandescent light bulbs. [Andypugh] had been looking at them with interest ...
We tested the low-beam performance of single-filament (9003) and dual-filament (H7) bulbs from GE, Hella, Philips, and Sylvania, and PIAA's dual-filament bulb. We also compared their performance ...
Plot a graph of voltage, V on the y-axis v current, I, on the x-axis. For a filament bulb, voltage and current are not directly proportional as the graph is not a straight line through the origin.
The bulb glows because electricity flows through the thin wire inside the bulb called a filament and makes it hot. When the bulb gets old, the wire will eventually break, breaking the circuit and ...