How do coolbulbs make my headlights brighter?

The brightness of any bulb is measured in degrees of Kelvin or just “K.” This tells you the color temperature of the light (nothing to do with operating temperature). If you stare directly into the sun you will see that it produces an extremely white light. Sun light is 4850°K, and most HID systems produce about 6000°K. Most vehicles are equipped with standard halogen bulbs with a light output around 3200°K. Our Nokya Arctic White bulbs bulbs produce about 5000°K and our Arctic Purple bulbs are about 7000°K. The difference is huge. This increase was achieved two ways. First, these bulbs use a more tightly wound spiral filament made of finer wire in a precise mixture of halogen and xenon gasses that is under much higher pressure than a normal halogen bulb. Second, the presence of xenon gas under high pressure provides an increased rate of halogen regeneration resulting in a very intense light. Depending on the design, a 55-watt version of this type of bulb can produce the equivalent out ... more