How must a load be marked in darkness or bad visibility when it extends laterally more than 40 cm beyond the side lights of the vehicle?

In this situation, a load extending laterally more than 40 cm beyond the side lights of a vehicle must be marked appropriately for safety reasons. According to German traffic regulations, it is essential to indicate the presence of such a load to ensure other road users are aware and can maintain a safe distance.

The correct combination includes marking the load with a white light to the front and a red light to the back. The white light at the front signals the load's presence to oncoming traffic, while the red light at the back warns vehicles approaching from behind. This dual marking is crucial for preventing accidents, as it clearly defines the vehicle's width and ensures visibility in darkness or poor visibility conditions.

Simply using only one type of light, as represented in your answer, does not provide adequate warning to all road users. It's essential to comply fully with these markings to enhance road safety and follow legal requirements.