Thomas Edison's incandescent light bulb, patented in 1880, made electric lighting practical, affordable, and long-lasting. It ...

The filament lamp is a common type of light bulb. It contains a thin coil of wire called the filament. This heats up when an electric current passes through it and produces light as a result.

Buying light bulbs today can be confusing ... because it's harder for electricity to flow through the filament than your home ...