Philips Automotive Lighting D4R Authentic Xenon HID Headlight Bulb with 4200K Intense White Light, Fits Select High Beam and Low Beam Positions, 1 Pack

I bought these bulbs for my 2008 Prius with HID headlights, and they were a perfect match — they appear identical to the original OEM bulbs. I had previously tried aftermarket options that didn’t last long and would start flickering or randomly shut off. These have been rock solid so far.Installation in a Prius is a bit of a challenge due to tight access, but that’s a car design issue — not a problem with the bulbs themselves. Now that they’re in and working flawlessly, I don’t expect to touch them again for another 300,000 miles.Highly recommend if you want quality and reliability without the headaches of cheaper alternatives.

Works as should. Not too fancy and not cruddy. Just right.

Great bulbs, but with these tips you should have an easier time that I did!1) Go to YouTube and watch both videos by jnet1 (How to change your Prius HID bulb in 10 minutes (Part 1 & 2) and Brian Mathis (How to install a Prius Headlight and How to Remove a Prius Headlight). The reason for watching both is because one gives tips for drivers side and the other gives tips for passenger side, which ARE DIFFERENT based on the surrounding components around them.2) Use a thin flathead screwdriver to wedge in between the seal on the black dome and wiggle it a bit in several places. This will help the break any sort of "gunk seal" that would otherwise prevent you from removing this part of the unit. I struggled with this for over an hour and I'm a strong handed adult male who couldn't get these to budge without doing this. Just be sure to it gently, you don't want to break anything.3) Forget clockwise and counter clockwise, just turn the dome toward the drivers side the unlock, toward the passenger side to lock. Much easier to remember and much harder to overthink.4) Once you get the dome cover off and start to remove the next part I recommend that from here on out, every step simply do and undo with the existing part to get a FEEL for how it's supposed to go. Since the space is somewhat cramped its great practice and I was able to use this method (in addition to watching the videos) without the use of a flashlight or mirror. This is especially useful when it comes to the metal clips.5) Take note of how the bulb sits in the housing when you pull it out, you will then know exactly what position to put the replacement in!If it seems hard and you're running into a roadblock, just step away for a few minutes, watch the videos again and keep trying. I now laugh at watching people remove the bumper and so on knowing that it can be down much easier and much faster.Good Luck!

These are really nice and bright and white We can see a lot better now even though the headlight lenses are foggy needing to be buffed and polished.One bulb was intermittently going dim and off while still being fully illuminated most of the time.I replaced both bulbs as suggested and I was extremely pleased that I did, the difference was like dark of night and daylight sharp and bright and we could see far and clear.These bulbs are manufactured by the inventors the High Intensity Discharge Xenon bulb PHILIPS are the best money can buy and these prove it.If you need a new HID bulb buy a pair of these, they’re the best you can get in every way.

My Prius started having intermittent issues with the D4R original bulbs (touring model) at about 54,000 miles. This is a known problem (the subject of a class action suit against Honda) and the usual solution is to replace the bulbs before they fail on a dark night and potentially cause an accident. My problem, unfortunately, was right after the expiration on the lawsuit warranty extension.This price, through Amazon, was far lower than that from a dealer or even from the local auto parts store.The bulbs (it's a good idea to replace both at one time) came on time and so far they seem to work fine. My one concern, and the reason for four rather than five stars, is the packaging.This may be the only time I ever felt that there was not enough package protection. Usually, my irritation is that a product comes so well protected in blister packs or worse that I have to risk destroying it or injuring myself to get at it.This time, each bulb came in a very small box that was not sealed and had a flimsy top already coming open. These bulbs are very high intensity and it is important that nobody touches them without protective gloves (to protect the bulb, not the person!) to avoid getting natural skin oils on the glass.Concerned, I wiped each one with alcohol and let it dry before installing them (with gloves).As I mentioned, the headlights work fine and I hope they last for at least another 50,000 miles. If the packages had even been sealed with a piece of plastic tape I might not have felt the need to clean the bulbs.The Prius is still a great car!