Far superior to stock. Haven't had a single issue since switching from the Moriomoto kit to these.
I have this same kit and have no issues other than a slight flickering when I go over bumps.
Thx guys; looking at the 4300K (Philips bulbs) but I've never picked light temps before. Which color temps did you go with and any regrets? I've never liked the "blue" look much but am again primarily looking for clear and wide patterns to improve animal detections at night.