Instruction: Answer the given question using the supporting document.

Input:
Question: How long is the warranty?
Document: This does not come in as pictured, plain packaging, some letter about how to identify a real bulb, could be printed by anyone, no way to know if really OEM bulb, warranty card not Philips. I am returning ASAP.
So if you are worried about how long this will last, it should last just fine. As long as you install it carefully without touching it with your fingers it should work out just fine.
It all depends on how long the bulb lasts. Last time bulb only lasted 6 months but I don't think it was the Philips brand. But for now a beautiful picture.
got my new bulb yesterday and it works just as it did with the last bulb. my last bulb lasted 2.5 yrs so hopefully this one lasts just as long if not longer.
I did receive a real Phillips bulb. It was easy to install and worked perfectly. I can't speak to how long it will last since I just installed it. So don't fear that this will be a cheap rip-off bulb. It's the real deal.
Bulb arrived new in Philips package just as pictured. Took me probably 10 minutes total to change it. Save yourself some money and just buy the bulb without the housing. Hopefully this one lasts as long as the original bulb which was approx 3 years. Amazing how much brighter it is now.....must have been degrading over time.
It came with a flyer on how to distinguish a Philips bulb from a generic, a warranty card, and a troubleshooting guide with installation instructions for both the bulb and the housing. The installation instructions were lacking, and I found the bulb replacement to be not very intuitive (from an engineer/ former technician who routinely voids warranties on everything). You need a #2 Philips and a 7mm socket or pliers.
I thought the bulb would have an open face, it's doesn't. The bulb is completely enclosed in glass. As long as you don't touch the face you'll be good. That was a surprise to me. I ready for the latex glove treatment but honestly it's not necessary as long as you don't touch the face. The bulb is held in with about 4-5 screws on the housing and lamp total. It's a no brainer, easier than I thought, all self-enclosed.
Looking around at all the different options on Amazon it was hard to know exactly what you are buying and going to get. This was exactly as promised. An OEM Phillips bare bulb. You do have to swap the bulb into the carrier. Its not a bad job, even with cleaning all the dust accumulated at the back of my TV it took about 20 minutes. The TV is good as new again and its been about 2 months and I have faith it will last as long as the original.
They also have a one year warranty - better then the 90 days to 6 months offered by many competitors. One other note - both Philips and Osram make OEM bulbs for Sony TVs. Philips has the better reputation (unfounded, but that's the perception). I found that several other stores offered the customer the option to choose between Philips and Osram - but then up charged the Philips when you get to the checkout page. Bas***ds!
Answer: One year. This is the original OEM bulb that Sony used in their projection TV. I got around 3 years life span.