The video discusses the Eiffel Tower's lighting system, which uses 20,000 bulbs powered by mains electricity. It explains the components of an electrical circuit, including a power source, wire, components, and a switch. The Eiffel Tower's lights are energy-efficient and only operate for a few minutes each night to conserve electricity.

Describe the components that make up an electrical circuit.

What happens when the switch for the Eiffel Tower lights is turned on?

What is the main power source for the lights of the Eiffel Tower?

How do the lights of the Eiffel Tower reduce their power consumption?

How long does the light show at the Eiffel Tower last?