Summary: The information in this web page is incorrect. This product is not HD33, The product name and specifications in this web page is HD33 but when I bought it they sent me Model TW615-3D which low qualities spec and cheaper. Don't place the order to this product if you want to buy HD33.
Summary: I purchased this item from this company(Which I already returned)thinking it was the HD33...They had the right picture then, however they send me a $699 projector instead, asked them to send the right one they claimed out of stock.
Summary: I am using various projectors as my main TV for about a decade now, and this was by far the best projector I had. Fantastic optics, extremely bright, clear, sharp image. Unfortunately it lasted only about 12 hours of projection time. And 3D probably works only if you buy additional equipment, it was greyed out on my projector and the manual assumes it active and doesn't talk much about it, just a brief description of what should have happened in an ideal world.
Summary: This seems to be an error. The Model number displays TW615-3D as the projector, but the title says HD33. These are two different projectors. One is 1080p, but the TW615 is only a 720p projector. FYI for everyone.