What is a retroreflector?
Lighting
Explanation
A **retro-reflector** is a device that **reflects light** coming from an external light source, such as the headlights of other vehicles. Its main function is to **make the vehicle visible** in low light conditions or at night.
- Retro-reflectors are placed in different parts of the vehicle: at the front, rear, and sides.
- Each location has a specific color: **white** at the front, **red** at the rear, and **yellow** on the sides.
- In the case of trailers and semi-trailers, the rear retro-reflectors must be **triangular** in shape.

This device should not be confused with other vehicle elements, such as reflective license plates or lighting devices, as its specific function is to reflect light to improve the vehicle's visibility.
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