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 ...

According to the State-run power utility, of the 1.17 crore 9 watt LED bulbs procured under the Filament Free Kerala programme, 2.19 lakh remain unsold. In addition to this, 81,000 LED bulbs ...