Legal definition
Device used to indicate the presence of a vehicle by reflecting light from a source independent of that vehicle, with the observer near the source. Retroreflective registration plates and the retroreflective plates and signs excluded in this point are not considered reflectors.
RDL 6/2015, Annex I, point 44 (translation)Definition
A reflector (catadioptric) is a device without its own light source that indicates a vehicle’s presence by reflecting external light toward an observer near that source. It is a passive signalling device.
Key facts
- Passive element: it doesn't emit light, only reflects it.
- Rear vehicle reflectors are always red.
- Trailers and semi-trailers must carry red triangular reflectors on the back.
Practice real questions on this topic
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In the DGT exam
- What colour are the rear retro-reflectors?
- What colour is the plate that vehicles exceeding 12 metres in length must display?
- In Spain, the V-13 plate with a white L on a green background at the rear of a car identifies: