I have PIAA on my windshield and KC on the grill. The PIAA are SO much better. I can't remember if I have the 510 or 520. Whatever is 3.5 or 4" In diameter I have. They are just phenomenal. Don't get me wrong, I like my KC's and actually use them a bit more but something about the PIAA seems sturdier. KC does have a really nice warranty tho. That's why I have them mounted lower. Any rocks break them or something else breaks them I can get them fixed for free
Don't know how they compare to the big names KC and PIAA. But for 28 dollars I will be buying a set to try out tomorrow. Checking to see if the local store has them first. I plan to get the KC light covers for them.
"If you ain't first you're last"
The rigid duallys are awsome! Ive never ran any other light so I dont know how they compare but I have two on the windshield mounts and three more to put on my bumper bar, if it ever arrives. I live in a lot farm land so I wanted to be able to see a long distance and these things work great for that. These things would vaporize any zombies that cross your path. LOL