Have a virtually infinite life span.
While it does absolutely nothing for performance, you can't deny the cool-factor! More Light Output: The original 4Runner XB's used 2 projectors for low beam, and one dedicated high beam. Easily making them the best LED headlights on the market today for the 4Runner aftermarket Second Gen Update: The 4Runner XB headlights broke the mold when they came out as the first set of performance aftermarket headlights for the 4Runner. Thankfully the new Morimoto XB LED headlights: Look great.