LED bulbs?
We see this time and time again, people spending hundreds of bulbs or light housings and its worse than stock.
LED light is different to the stock halogen lights - halogen needs the reflector to bounce the light back out. The distance between the filament of the bulb and the first reflector and the headlight reflector are all engineered to allow for the max amount of light possible. Changing to LED bulbs moves that filament measurement point and throws out the rest of the measurements.
LED bulbs and HIDs work 1000x better with/in a projector housing.