Aftermarket lighting is about bulbs. But you have to know what bulbs you need in order to make an effective aftermarket lighting purchase.
Scientifically speaking, a Kelvin is the unit of measurement used to describe the particular hue (color) of a light source. In this case, your headlight. Isn't all light white, you ask. Surprisingly, no. The higher the Kelvin value, the closer the color will be to sunlight which is actually a bluish tint. If you go lower on the Kelvin scale, you'll get more of an amber tint. Stay in the middle, and that's where you'll see the white.
Why does it matter? Different Kelvin values work better in different conditions. Higher values increase visibility at night, while lower values combat fog, snow or rain.
Read more, then search our inventory of aftermarket lighting products.