Halogen headlight bulbs, which function by heating a tungsten coil, are one of the most common light bulb types for car headlights. These light bulbs are able to produce a higher amount of light, measured in lumens, than other light bulbs. They also create a color profile similar to that of the sun, making the light clear. While there are many basic halogen bulbs, and they may all appear the same, there are several features that set bulbs apart — the amount of volts used in the bulbs, the color of the halogen bulbs, and the lumens.
Unlike other headlight bulbs, halogen headlight bulbs work by converting a high amount of energy into heat. All light bulbs do this, but halogen bulbs do this especially well. If the headlights are on often enough, this extra heat can affect the car’s wiring by frying nearby wires, causing the light to stop working. For this reason, consumers should get the lowest voltage bulb that will meet their individual needs. Using high-voltage halogen bulbs may void a car’s warranty, so the owner should check this out before buying a halogen bulb.
Like most other headlights, most halogen headlight bulbs are white, because white is the most efficient color and helps drivers see the best while on the road at night. There are other colors, such as blue, yellow and purple. These do not add any extra functionality to the car, but they can make it look unique, which some car owners may want.
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The problem with using colored halogen headlight bulbs is that the light potential will be lowered and the lights will not work as effectively. To get the bulbs to shine a certain color other than white, a filter is placed over the bulb so it only pushes out that color. In the case of blue, a blue filter will cause only blue light to emit from the halogen bulb. With all the other colors being blocked, a large amount of light is taken away, making the bulbs dimmer.
Lumens, the measure of light’s brightness, are another important aspect, especially if the car owner is using colored bulbs. Purchasing halogen headlight bulbs with a high number of lumens means the bulbs will be able to shine brighter, making them more efficient for nighttime use. If the owner is using colored lights, the lumens should be higher to compensate for the blocked light.