Reduction gear and incandescent light bulb: what they have in common

1. Step 1. Reduction gear — is part of — Electric car. A single-speed reduction gear usually replaces the gearbox.
2. Step 2. Electric car — uses — Charging station. It charges at charging stations.
3. Step 3. Charging station — has part — Rectifier. Fast chargers rectify the mains current.
4. Step 4. Rectifier — is part of — LED lamp. The driver in the base rectifies mains current and limits the LED current; in an ordinary bulb it has no transformer.
5. Step 5. LED lamp — evolved from — Incandescent light bulb. It replaced incandescent bulbs.

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