headlight

so i have had a problem with one headlight being way brighter then the other i have tried a new ballast hid kit and also new lights with no luck,any one know of what might need done to fix this or has this happened to any one else? thanks

Can 08 Tahoe headlights be pulled apart in the oven, I have them out of the truck but how long do I put them in the oven for, I'm going to put home-made halo's on it, Is it possible, I REALLY want to do it, some say its not possible but i have faith?