even though it sounds dumb, i think the best bulbs you can get are just the regular halogens.... i've had so many pairs of blue bulbs and they all blow after a few months.... it's bull. I've had a regular pair of bulbs in my car for the longest time now they work fine. they way i figure is if your gonna waste that much on bulbs you might aswell just save up and get a 8-12k HID conversion kit. they are around 3-400 for a good set, and that way you wont get "immitation HID" you get the real shiizzz