哪款短焦投影仪的能源效率最高？

The BenQ LK936ST is a bright 4K UHD short-throw laser projector with a 20,000-hour light source, 92% Rec.709 coverage, and dedicated Golf Mode. It suits golf simulators, home theaters, gaming, and large-screen installations where ambient light and flexible positioning are important.

The Epson Lifestudio Grand is an ultra-short-throw 4K PRO-UHD laser projector with 3600 lumens, built-in Google TV, and Sound by Bose. It suits home cinema, streaming, gaming, and bright living rooms where a large image is needed without ceiling mounting.

The Epson Lifestudio Grand Plus is an ultra-short-throw laser projector with 4K HDR projection up to 150in, 4000 lumens of color and white brightness, built-in Google TV, and Sound by Bose audio. It suits home theaters, living rooms, gaming setups, and other large-room entertainment spaces where a bright, immersive image is needed from a short distance.

The BenQ TK700STi is a 4K UHD short-throw projector with 3000 ANSI lumens, HDR10 support, Android TV, and low input lag for gaming. Its short-throw lens suits small to medium rooms, while built-in vertical and horizontal keystone correction makes setup more flexible.

The BenQ LW890UST is a 4000-lumen WXGA laser projector with an ultra-short 0.24:1 throw ratio, allowing large images from a position close to the wall. Its sealed laser design, long 20,000-hour light-source life, extensive connectivity, and flexible keystone adjustment suit classrooms, meeting rooms, and other professional spaces.

The Optoma HZ146X-W is a bright Full HD laser projector with 3,800 ANSI lumens, a 30,000-hour laser light source, and support for screens up to 300 in. It suits home cinema, gaming, business, and education users who want vivid images, low maintenance, and flexible installation.