What is on the street, how power reaches each lamp, and the lighting levels each road needs.
- How a street light network works: From the transformer to the lamp.
- Inside a lighting cabinet: An interactive diagram of a typical three-circuit cabinet.
- How lights know when to switch: Timers, photocells, and astronomical clocks.
- Cables, voltage drop, and earthing: What is under the road, and why it matters.
- How much light a road needs: Lighting classes, lux, luminance, and uniformity.