I havn't heard much about Vision in about a year or so now. They were big on the scene when they first came out but I havn't heard much about them lately to be honest. Baja Designs and Rigid became THE go to brands for quality. Nothing wrong with Vision but just not as high quality.
You get 4,208 lumen total between the four lights.
Now take a single Squadron Pro from Baja Designs, which is 4,900 raw lumen EACH. So 2 pairs of Squadron Pros would put out a whopping 19,600 lumen
Even if you went with say the Squadron Sports, those are 1,800 lumen each... totalling 7,200 lumen
Soo you get a LOT more light. I'd recommend the Baja. I went with some Rigid on my truck to begin with, which is a great brand, BUT they couldn't even compare with the light output so what a world of difference upgrading to Baja was.
I've had the Squadron Sports on my truck about 2 years now and love them. I love the Pros even more since they put out a LOT more light.
If you want to save some cash, VisionX work well... but if you REALLY want a quality product and great light output... go with the Baja Designs.
If you are lookign for a fog light kit you have 2 options
Option #1 (well there are 3 options in here) are the Baja Designs Kits (includes wiring harness/bracket/3 pairs of lights):
LED Auxiliary Lights - Baja Designs - Raptor Lighting Kits - 4x4TruckLEDs.com
Option #2... If you want that OEM look then the FRL (Jeff's) kit compbined with Baja Designs lights is awesome as well. Gives you that great OEM look, they sit nice and flush/recessed a bit and you can pick/choose wihch Baja Designs lights you want:
2017 Ford Raptor Triple Fog Light Bezel Kit w/KC HiLITES Flex Lights - 4x4TruckLEDs.com