Panasonic PT-LB75U and PT-LB75NTU XGA Portable Projectors: Warranty
I know of no better warranty than the one Panasonic puts on all of its LB series projectors. The warranty is three years parts and labor. In addition, the PT-LB75U and PT-LB75NTU, (and other LB projectors) have Panasonic's 3 year Zip-It, overnight replacement program. Although Panasonic isn't the only brand to offer a warranty this good, very few others do, (including some Mitsubishi models).
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Most manufacturers of portable projectors offer two year warranties, and some only one year. For example, Epson portable projectors have a two year warranty with overnight replacement both years, which I consider to be a very good warranty. Most offer no replacement or loaner warranty. Bottom Line: Both of these Panasonic projectors have the best warranty around!