A light bulb is an artificial light source. The correct term is actually incandescent lamp - in colloquial language, however, the term incandescent lamp has prevailed, since many incandescent lamps have the shape of a pear.

The lightbulb works through an electrical conductor that is built into its interior. This heats up with electricity, which causes the light bulb to glow.

In 2009, the EU decided to gradually ban the manufacture and sale of light bulbs with poor energy efficiency. This is why LED light bulbs are primarily used today, and their ecological balance is significantly better than that of the conventional light bulbs used in the past.

There are special WiFi-based LED light bulbs for the smart home that can be switched on and off and dimmed via app or voice command.

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