1.

Always get a professional alignment after you change a headlamp, driving lamp or replace a bulb.

2.

Always use a bulb of the recommended wattage in your driving lamps. Using a higher wattage bulb than recommended will not increase the light output very much and may produce too much heat. In some cases this may cause damage to the lamps.

3.

If you are blowing bulbs regularly, and/or your lights are not as bright as they used to be, try fitting a relay. A voltage drop of just 1 volt, equates to a loss of 20% light output. 12V bulbs  are designed to operate at 13.5 volts.

4.

Dont forget to remove the driving lamp protective covers before turning your lights on, or use clear protective covers which can be left on at all times.