The lamp comes with a 90 day warranty, which is the most typical, but also the shortest lamp warranty manufacturers offer.
By comparison, though, in the $1000 to $2000 price range, many projectors offer two years, and a couple, even three years warranty. That said, one year warranties probably are the majority in the price range. In the under $1000 1080p projector range almost all the models are one year, but the Viewsonic offers three years at $999.
While I'm not generally a fan of 3rd party extended warranties, due to the high cost of repair in many cases, when out of warranty, I do recommend a low cost 3rd party extended warranty. Go for at least one extra year (two is your option), when confronted with projectors with one year warranties, such as this HD33 home entertainment projector.
In the similar price range, consider these non-3D capable projectors that have received awards from us when reviewed. : Epson Home Cinema 8350 (2 years with replacement program both years) Mitsubishi HC4000 comes with 2 years, PT-AE4000 (one year, but free 2nd year with registration (most of the time), Viewsonic Pro8200 (3 years).
So, while the HD33's one year warranty may be typical, for the price, many have better warranties. Consider the HD33's warranty to be minimal. No brownie points for being exceptional in this area. One year? Yawn!