According to an old report by Trygg Trafik Norge from 2017, the risk of accidents for pedestrians can be statistically reduced by 85% if reflectors are used. Reflectors protect pedestrians most effectively in twilight, in the dark or in fog, but are also an additional protection during the day.
The accessory should be attached on your side so that it can be seen from the front and back. It should also move freely to capture light from all angles. Generally, it is recommended to wear reflectors at a height of 50-90 cm so that the low beam of approaching cars can be optimally reflected by the trailer.