Ok. Before creating a new topic, I did a search on xenon HID headlights for the Levin ZR and how to change/replace them. The problem I have is that one of my original low beam xenons (passenger side) lights up for about a minute (sometimes less) and then just turns off. If I turn off the lights and then turn them back on, same thing, works for about a minute, then dies. What I need to know, would it be the bulb that is dead/dying or is it the ballast? Has anyone had experience in changing the original low beam headlights on the Levin ZR? I would probably also look at upgrading the temp to 6000K to make the lights a little 'whiter' than the standard 4300K. I have done a quick search on eBay and have found the following two bulbs. I am leaning more towards the Philips bulbs. Is that a good choice? Philips D4S 42402 HID Xenon Bulbs 6000K Lexus Toyota JDM Garax 6000K D4S HID Bulbs Toyota Prius Venza Avalon Thanks in advance