Listing reads like these are a direct replacement for factory bulbs
594786
Listing reads like these are a direct replacement for factory bulbs...they are not. Emailed HID and they wound selling me and pair of ballasts to make these work on my truck.
1178804
I've been using the lights now for a couple weeks.  I bought them to replace the OEM bulbs on my '05 Dodge Pickup.  I was hoping for the 30% increase in distance they advertise, but that didn't happen.  They are no brighter than the stock bulbs and only a little different in color temperature.  If your looking for more of the "bluish" xenon look, these bulbs aren't for you.  Even though the bulbs are blue coated, they don't reproduce that when lit.  I'm satisfied ONLY because I wanted to replace the OEM's since they were a few years old and because I caught the "two for one" deal Amazon had on them.
4170829
My xenon bulbs started going purple or pink or I bought some here instead of going to the dealer and spending a ton.  I read some reviews saying there are some fake Chinese bulbs going around of this model.  Bulbs arrived well packaged and brand new.  I first thought these were fake because I had received the black and white label, but I soon learned that the black and white labels were the newer labels.  I've also found out the black and white labeled Phillips bulbs are factory on the newer Kia Optima.  I've used a magnet test on the bulb and the magnet does stick to the bulb base metal.  After installation the bulb and some burn in time, I"ve noticed they are slightly whiter/bluer than my stock OSRAM one.  These might be 4700k(4300k stock) in color, but does not say say on the box.  From the outside view, I cannot tell the difference.  I'm not sure if the OSRAM one has faded over time.  I'm pretty sure these amazon ordered ones are genuine Phillips and light output is good in quality.  1 month and so far pleased with these bulbs.
3510143
People, please read a little before you go and click "add to cart" with a big goofy smile on your face.  In a lot of reviews people seem to think these are gonna fit every interior and exterior bulb in your vehicle and that's not how it works.  If a bulb goes bad you need to check the type in order to get a proper replacement, right?  Same thing here.  If it says it fits your vehicle, it does...somewhere.  it's your job to find out which bulbs you need and where they go, not the people who are sending these out.  Gotta love irresponsible idiots that blame everyone but themselves for their own stupidity.  Just the way it is in 2017 America.
1229804
I got my bulbs from seller energysavinglighting to replace blown exit sign bulbs.  They are direct replacement and they work fine, 5 stars for product and seller
2116305
These claim to produce white, like HID light output. Reality is they are not whiter than stock factory bulbs on new Toyota CHR. Even the package rates them below 3700K. Sorry I wasted $40 on what is no different than factory lights. Would not buy them again and would not recommend them.
1071363
I'm considering this to be a bait and switch for the following reasons:
1. The unit received does not look like the unit pictured. I received a product without a dust screen and without attached screws.
2. The unit received does not have a serial number, nor any manufacturer label.

I've replaced the bulb in our TV 3 times over the last 12 years.
The official replacement bulb is manufactured by Phillips... the enclosure should also be marked as being manufactured by Phillips.
Mitsubishi made the enclosures for their OEM replacement, but have always used Phillips bulbs (Phillips does a really good job on their bulbs).
What I recieved was a very cheap imitation by an unknown company that failed to copy the product well enough to pass it off as OEM... once you get your hands on it, it's obviously the wrong type of plastic, missing the dust screen, looks like it is just a bit too big to fit properly, and is missing any serial numbers, model numbers, or manufacturer information on it.

I was honestly expecting a knockoff at this price, but I figured they would at least do a competent job on their copy. I refused to install it, all I need is for it to melt into the back of my TV... the plastic just feels cheap, like it would burn instead of melt... I refused to take that chance.

I ordered this one through Exclusivebulbs. I don't fault them, they are just reselling the product... but I didn't trust even the bulb... I could have done a bulb swap, but I'm not taking the chance.

I purchased a genuine Phillips replacement on Amazon about 6 years ago and it is still going. It's starting to flicker and fade... which is what the old one did before it died. I ordered another one of those bulbs... but they are $95 a piece... well like most of the time, you get what you pay for, and I want a good bulb and enclosure... the extra $75 or so is a lot less than a new TV.
3028286
These bulbs work fine for replacements, but i was hoping, from the description, they'd be brighter than stock. They are about the same. I'd recommend not to buy them if you're looking to see further.
2348377
These lights are basic OEM replacements. The light color has almost no "white" to it, your basic yellow light. As far as replacing OEM bulbs, and wanting the yellow basic light, these are okay, though over priced, can get better deals on ebay. If your looking for a HID look, "white light", these aren't for you.
3112692
Mueller Autowerks sold D1s fake item + older version of bulb . Not like stated in market!
3973725
Almost identical replacement for the bulbs in my ceiling fan. Smaller and the same brightness with almost identical color temperature. Instant on and off. At $3.40 a bulb(current price) I would imagine they will not take long to pay for themselves compared to a conventional incandescent bulb. I was very suspicious about their quality before I ordered, but my concerns were without merit.
2013523
I purchased a pair of these because one of the bulbs in my 2002 BMW 330ci had cracked and was dimmer / discolored. This product is identical to what I assume are the original bulbs in my car - Philips D2S, made in Germany.

I originally planned to have my mechanic replace the bulbs but when I saw the OEM price from other online retailers for BMW parts, I thought better of it and decided to buy these from Amazon and replace them myself.

I've not yet driven at night to compare brightness, but in daylight they seemed sufficiently bright and I feel great knowing these match exactly what I had previously.

*** UPDATE: I hadn't seen the notice to confirm authenticity of the bulbs, so I checked after installing them. One of the two I ordered did not appear legitimate through Philips' web site. So, thanks to Amazon's gracious return policy, I've returned both (lost track of which came from which box) and will be re-installing them when the replacements arrived.

Before/after pictures attached.
3523425
I needed a replacement for my 579 lightbulbs in my 1998 Dodge Grand Caravan.  The bulbs are used in the dome/reading light in the front seating area.  Other LED bulbs sold as direct 579 replacements were in fact too long to fit.

These bulbs are shorter and thus function as a 579 replacement in terms of size and fit.

The connector is a T15 socket.  Basically, the T10 and T15 are the same base; the number refers to the width at the *top* of the socket.

In terms of light output, these lights are what I would call average.  I think they put out just about the same light as my original incandescent bulbs, but use less energy in doing so.  And of course, they are estimated to have a much longer lifespan, upwards of 12 years and probably longer in the real world, as the dome light doesn't stay on very long or get used other than when opening/closing the doors.

The light quality is white/blue, in the range of noon daylight.  Not yellowish or warm like an incandescent bulb.

I can recommend these as a direct replacement for the 579 light bulb, especially in terms of size.
1629828
Cheap plastic lights. Not premium as the ad states. The bulbs included are a basic 37.5 watt bulb. I have better bulbs to install but the holes in the lamps are not the same as OEM replacement bulbs. I will be returning these due to them being cheap plastic and low quality. If you want a cheap, basic replacement then this would be the one for you. I, however, am looking for better.
2236317
This is original OEM light bulb sold through Amazon. Its not listed very well. I checked with the supplier. Don,t waste your money on Chinese bulbs.
1312982
Please put that these are only rated for 125 hours in the item description!!!! My stock bulbs lasted 10 years!
4106262
Disappointed. Purchased for a new 2016 Kia Soul ! to replace existing LED bulbs that came with the car.

I asked the folks at a shop that does all kinds of work on our cars to replace the bulbs since I left the car for pin striping. The told me that the bulbs in the car are held within modules. Each module would need to be replaced. I will be verifying this with the mfg.

They also said that the factory bulbs were good quality and that these are cheaper quality.

I am open to hearing any facts from the vendor/mfg.