I've been hearing a lot of people recommending LED headlight systems over HID headlight systems, which are the better of the two? Which produce more light? Which will last longer?

 

LED lights are more common these days, but keep in mind that retrofitting may not always give you the best results.

Projectors are easier to work with, but older 2007-2009 outlanders have multireflector housings, so things will be different.

Keep in mind that your eyes dialate to the hottest spot in your beam, so if your lights throw too much into one spot, your eyes will dialate to match that bright spot, then everyone surrounding it will look darker. So if you look around at the trees to the side of the road, they'll be way darker. You want a system that spreads as evenly as possible.

The best headlights available are laser headlights like on some BMW vehicles.

 

can you buy a hid headlight for a brighter white light for my 2019 Outlander se because I have the small glass goggle type for my lenses?

 

It's been 4 years since that post, LED headlights have gotten much better. They're easier to install than HID and spread more evenly now depending on the bulb you buy.

See this reference for projector housings: https://www.bulbfacts.com/led-kits/c...rojectors.html