If your headlight beam is too dim there could be a number of reasons for it. The bulb may be failing and will require a repair or replacement. It could also be that the battery or alternator is not producing enough voltage and they are not delivering the right amount of power to each headlight.Perhaps the headlight lens is just cloudy or tarnished. Over time, the plastic used in the headlight lens gets worn out and becomes yellow or cloudy looking. A simple headlight restoration kit will be helpful in getting the headlight lens looking like new. Even expensive cars with modern headlights will eventually need the headlight beams adjusted. Not only is it a safety issue, because seeing the road ahead of you is important. It can become a safety issue for oncoming traffic as well. A misaligned headlight can shine right into the driver’s eyes.