These lights are awesome! these LEDs are SO much better than the original HALOs I had in my 2017 f150 Lariat. These light up signs down the street MUCH better and have a further sight range. I wasn't sure how much of a difference there was until I actually drove the truck and I tell you what, it has left me verrrrry impressed thus far!
So you're wondering why only 4 stars? Well the only reason has to do with the fit. Even though this product does fit and works well with my truck, the dust cover that goes over the back doesn't feel completely/firmly closed because the fan on the back of the light protrudes outward just enough, preventing a complete 'seal'. With that said, it DOES cover the area, however, unlike with my high beam installation it did not firmly connect all the way around. I don't know if you understand what I am trying to say and sorry if you don't.
I am going to keep an eye on it during the upcoming days, weeks, months, to make sure no fluid/water makes it inside my headlight cover, If I have any problems I will update this review and will have to find a different brand. But for now, I love it, and they work like they should!