High Wattage Headlight Bulbs


Whereas common headlight bulbs operate at approximately 50 watts, high wattage bulbs can more than double the power. High wattage bulbs provide nearly three times as much light, which is even more light than xenon bulbs. The drawback to high wattage bulbs is that they are not legal on public roads because they can blind oncoming drivers. They can be used in vehicles for forestry and construction services, off-road, and emergency services. High wattage bulbs also generate much more head than standard bulbs.

Checking to See if a Car Can Use High Wattage Headlight Bulbs
In order to use high wattage bulbs, drivers may need to upgrade the wiring in their cars. This can be done using a voltmeter to measure the output of the alternator. The positive voltmeter lead should be moved to the back of the bulb, which will pierce the insulation. With the lights on, turn on the engine and note the voltage. Compare that voltage to a measurement taken with the lights off and car running at 2000 rpm. If the voltage drop is over one volt, there are some mechanical issues that will need to be resolved before high wattage bulbs can be used.

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