I noticed that best headlights for my 379 - oem stock halogen . They are not super bright like led or xenon but they work for me , they dont blind others , also they are the best in heavy rain or snow ( it has something to do with color ( whites are the worst in that weathers ) ...i tried so many already ( from cheap to most expensive ) , $24 for set of highs and lows .
I have xenon on my kw , have to replace them due to turn signal stopped working ...will try to match best possible halogen bulb for them
deep space lighting as the other poster says. Good kit, simple instructions and a warranty from the owner. Good guy. Or buy a new set from Volvo. Or just buy a set from generic manufacturers. Many dealerships sell a complete kit. Easy to find online good luck