BenQ LU935ST Laser Projector  supports bright  5500 Lumens, a Short Throw Lens, WUXGA native resolution and an input lag of 33.4ms. Throw Ratio: 0.81 ~ 0.89 - Zoom Ratio: 1.1x - Keystone Picture Rotation: 2D, Vertical 30 degrees; Horizontal 30 degrees - Input Lag: 33.4 ms (1080p@60Hz) - Speaker: (x2), 10W - LU935ST. 8.3 million pixels that enables you to see every subtle detail on any image. AMAZING COLOR ACCURACY - 92% Rec 709 colour accuracy to see every detail. V/ H lens shift, 2D keystone and corner fit. Fast <17ms response enables realistic simulation and gaming. 5500 ANSI LUMENS FOR Big screens - Will effortlessly fill large screens up to 20 feet wide. Maintenance free design - Sealed IP5X laser engine means no dirty projector filters and 20,000-hour laser life. Zero-deviation alignment of laser diodes boosts luminous flux into the light tunnel, improving light efficacy to 5,000 lumens. Dual synchronized colour wheels utilize an additive yellow segment, stimulating precise RGBY spectra for optimal chromatic performance. Comprising over two million micromirrors that reflect pure light through the color wheel, the DLP chip is hermetically sealed to resist heat for over 20,000 hours without degradation. LU935ST is equipped with a short-throw lens that will fill up a 12 foot wide screen from less than 10 feet away. This enables you to place the projector so that you can stand closer to the screen without casting a shadow.