I too run Sealight LEDs in my 2015 Limited with projector lenses. I originally installed the X1 in low beam and made a huge improvement over factory bulbs. Then a year ago I switched to their X4 series in low beam and HOLY COW! Awesome bright light! Shortly after I upgraded the high beams. I wanted to put in the X4 in high beam as well but they wouldn't fit (couldn't get the rubber dust cover back on). So, Sealight was super helpful in trying different bulbs until we found one that fit which was the X2 series for the high beam. I've only had them in one year, but no problems. I absolutely love them, super bright, clean cut-off line, but correct installation and orientation /bulb position is critical, as mentioned in other posts.
It was very disappointing how lame the factory headlights were!! These LEDs made day/night difference (pun intended).