No, LED headlights do not use more battery than traditional halogen or HID lights. In fact, they use significantly less. A ...

This makes an LED light upgrade for a halogen car a more complicated proposition than most people think. There are LED bulbs designed to work in halogen housings but the results vary greatly.

LED headlights are all the rage in the auto industry these days. Here’s how they differ from the formerly ubiquitous halogen headlights.

Owners of the all-new 2023 Chevy Colorado have been swapping their halogen headlamps with a set of LED bulbs. This doesn't require replacing the entire cluster.

A 1994 Jeep Wrangler in the lab had an LED conversion. "They would normally have the incandescent light bulbs or the halogen style light bulbs on it," Woodrow said.

It wasn’t that long ago that headlights were a no-thought-required feature. All cars had them and no one really paid them much heed unless they failed or were shaped in a particularly ugly manner.

Now, if you simply like the look of the LED lightbars, your decision is already made—there really isn’t a comparably shaped Halogen or HID light available. See All 11 Photos ...

Replacing your vehicle's halogen bulbs with cheap LED headlights you found on sale may sound like a good idea, but you probably should avoid it.

I believe the difference is that the Halogen unit is actually a transformer, which is to say a 12VAC output. While the LED is a driver, which outputs 12VDC.

Some CFL and LED bulbs will put their wattage equivalents on the box, while many don't—so this chart should help give you a good idea of how bright your new bulb is going to be.