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In 2005, the Dodge Ram 2500 uses a 9007 headlight bulb size. Halogen bulbs are the most common choice for car headlights, featuring a filament design similar to household lamps. They are cost-effective and require minimal upkeep. On the other hand, HID (High-Intensity Discharge) bulbs, introduced in the mid-1990s, are growing in popularity as a factory option for higher-end vehicles. Unlike halogen bulbs, HIDs do not have a filament, producing light through the ignition of xenon gas in the glass. They offer increased brightness, a longer lifespan, and consume less power than halogens when in use. If your vehicle doesn't come with factory HID bulbs, you can upgrade by purchasing a conversion kit.
The headlight bulb size for the 2005 Dodge Ram 2500 is known as 9007.
In the truck, the high beams use a 9005 bulb size, while the 2005 Dodge Ram 2500 uses an H11 bulb size for the low beams.