How is it possible to prevent oncoming traffic being dazzled by the dipped headlights?

You answered everything correctly. To prevent dazzling oncoming traffic with dipped headlights, you should make sure the headlight range is set according to the vehicle's load, which can otherwise cause the headlights to point too high. Additionally, always use bulbs that are permitted for your headlights, because incorrect bulbs may produce uncontrolled light beams. Finally, after any repairs—especially if they involve the headlights or the vehicle body—you should have the headlight settings checked, since misalignment can occur. These steps help ensure your lights provide the right illumination for you without impairing the vision of others on the road.