Originally Posted by tom @ eas
Bear in mind that the same uneveness of the rings is still present using HIDs as with your OEM incandescent bulbs.
The only change is that light output at the rings is at a higher intensity than stock, with the cost being a much higher temperature (referring to heat, not color) within the headlamp housing.
I'm with you, some people demand same intensity in all four halos but that pretty much impossible using plug and play kits.
As for heat...I live in Germany, problem solved.