How should the taillights be mounted on a vehicle other than a motorcycle?

The correct approach for mounting taillights on a vehicle, other than a motorcycle, is to have two lights installed at the same height, one positioned on each side of the vehicle. This uniform placement ensures that the taillights are clearly visible to drivers approaching from behind, thereby enhancing safety on the road.

Having two taillights not only provides redundancy—if one light fails, the other still functions—but also allows for better visibility across a wider field. This dual arrangement conforms to regulations that help ensure all vehicles are adequately marked for safety purposes, particularly at night or in low-visibility conditions.

In contrast, mounting just one light at a specified height could limit visibility and does not conform to safety standards requiring dual taillights. Placing taillights only on the roof is impractical, as it would obscure them from drivers behind the vehicle and could also violate laws governing light placement. Lastly, while having lights mounted at both the front and rear could maximize visibility, taillights specifically need to be located at the rear of the vehicle to properly signal braking and stop actions to following traffic. Thus, the best practice involves using two lights on either side at an equal height, ensuring compliance with safety standards and improving overall road safety.