The lights on your Christmas tree may be very pretty but they won't
save your life.
Having enough working lights on your car may
Far too many drivers fail to ensure that their lights are turned on
in poor conditions and may not be seen by another vehicle. If it's dull, dark or misty use dipped headlights.
Sidelights are useless in all driving conditions, use them only when parked.
In fog visibility it is usually worse with main beam so don't
Front and Rear fog lights should ONLY be used in very poor
conditions, for example thick fog, NOT during rain or at any other time.
See and be seen.
Article © Graham Benge 2007