No, the full beam headlights must not be used:

• When you meet another vehicle.
• When you drive close enough behind another vehicle so that the driver could be dazzled.
• When you risk dazzling the operator of a train, tram or ship.
• When the road has satisfactory illumination.

A road has satisfactory illumination when there are no dark parts on the road, or when it is sufficiently lit so that visibility is not improved by using full beam headlights.

Read more about correct lighting