{"product_id":"optoma-zk521st-b-5000-lumen-4k-uhd-short-throw-laser-projector","title":"Optoma ZK521ST-B 5000 Lumen 4K UHD short throw laser projector","description":"\u003cdiv style=\"max-width: 1100px; margin: 0 auto; color: #222; font-family: inherit; line-height: 1.65;\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003csection style=\"padding: 30px 18px 35px; text-align: center;\"\u003e\n    \u003cp style=\"margin: 0 0 8px; color: #1e5631; font-size: 14px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;\"\u003e\n      Built for Golf Simulation\n    \u003c\/p\u003e\n\n    \u003ch2 style=\"max-width: 850px; margin: 0 auto 16px; color: #161616; font-size: 34px; line-height: 1.2;\"\u003e\n      Optoma ZK521ST-B 4K Short-Throw Laser Projector\n    \u003c\/h2\u003e\n\n    \u003cp style=\"max-width: 820px; margin: 0 auto 28px; font-size: 17px;\"\u003e\n      Bring your favorite courses to life with true 4K UHD resolution, 5,000\n      lumens of laser-powered brightness, a golf-simulator short-throw lens and\n      dedicated Golf Sim picture tuning.\n    \u003c\/p\u003e\n\n    \u003cimg src=\"https:\/\/region-resource.optoma.com\/products\/images\/e875DYi75qPhDS5u7fWma1Vcqx6i1UXjfnPNWYyK.jpg\" alt=\"Optoma ZK521ST-B 4K short-throw laser golf simulator projector\" loading=\"eager\" style=\"display: block; width: 100%; max-width: 780px; height: auto; margin: 0 auto;\"\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- QUICK SPECIFICATIONS --\u003e\n  \u003csection style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-bottom: 45px;\"\u003e\n\n    \u003cdiv style=\"padding: 22px; text-align: center; background: #f4f7f4; border: 1px solid #dce6de; border-radius: 12px;\"\u003e\n      \u003cdiv style=\"color: #1e5631; font-size: 27px; font-weight: 800;\"\u003e4K UHD\u003c\/div\u003e\n      \u003cp style=\"margin: 6px 0 0; font-size: 14px;\"\u003e3840 × 2160 resolution\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 22px; text-align: center; background: #f4f7f4; border: 1px solid #dce6de; border-radius: 12px;\"\u003e\n      \u003cdiv style=\"color: #1e5631; font-size: 27px; font-weight: 800;\"\u003e5,000\u003c\/div\u003e\n      \u003cp style=\"margin: 6px 0 0; font-size: 14px;\"\u003eLumens of laser brightness\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 22px; text-align: center; background: #f4f7f4; border: 1px solid #dce6de; border-radius: 12px;\"\u003e\n      \u003cdiv style=\"color: #1e5631; font-size: 27px; font-weight: 800;\"\u003e0.79\u003c\/div\u003e\n      \u003cp style=\"margin: 6px 0 0; font-size: 14px;\"\u003eFixed short-throw ratio\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 22px; text-align: center; background: #f4f7f4; border: 1px solid #dce6de; border-radius: 12px;\"\u003e\n      \u003cdiv style=\"color: #1e5631; font-size: 27px; font-weight: 800;\"\u003e30,000\u003c\/div\u003e\n      \u003cp style=\"margin: 6px 0 0; font-size: 14px;\"\u003eHours of laser life\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/section\u003e\n\n  \u003c!-- GOLF SIMULATOR LIFESTYLE --\u003e\n  \u003csection style=\"margin-bottom: 45px; overflow: hidden; background: #151515; border-radius: 14px;\"\u003e\n    \u003cimg src=\"https:\/\/region-resource.optoma.com\/static-resource\/BMD\/Projector\/UX1\/ZK521ST\/1400x700\/luxury%20home%20golf.jpg\" alt=\"Premium home golf simulator powered by an Optoma projector\" loading=\"lazy\" style=\"display: block; width: 100%; height: auto;\"\u003e\n\n    \u003cdiv style=\"padding: 32px; color: #fff;\"\u003e\n      \u003cp style=\"margin: 0 0 7px; color: #9dccaa; font-size: 13px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase;\"\u003e\n        Tee Off Anytime\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"margin: 0 0 13px; color: #fff; font-size: 28px;\"\u003e\n        Immersive Golf Simulation at Home\n      \u003c\/h3\u003e\n\n      \u003cp style=\"margin: 0; color: #eee;\"\u003e\n        Designed for home and commercial golf simulators, the ZK521ST-B produces\n        bright, detailed course visuals while its short-throw design helps reduce\n        shadows and keeps the projector closer to the impact screen.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- 4K SECTION --\u003e\n  \u003csection style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 0; margin-bottom: 45px; overflow: hidden; border: 1px solid #ddd; border-radius: 14px;\"\u003e\n    \u003cimg src=\"https:\/\/region-resource.optoma.com\/static-resource\/BMD\/Projector\/UX1\/ZK521ST\/1400x700\/4K_Golf%20Simulator.jpg\" alt=\"Detailed 4K golf simulator course projected by Optoma\" loading=\"lazy\" style=\"display: block; width: 100%; height: 100%; min-height: 300px; object-fit: cover;\"\u003e\n\n    \u003cdiv style=\"display: flex; flex-direction: column; justify-content: center; padding: 34px;\"\u003e\n      \u003cp style=\"margin: 0 0 7px; color: #1e5631; font-size: 13px; font-weight: 700; letter-spacing: 1.3px; text-transform: uppercase;\"\u003e\n        True 4K UHD\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"margin: 0 0 13px; color: #161616; font-size: 27px;\"\u003e\n        See Every Detail of the Course\n      \u003c\/h3\u003e\n\n      \u003cp style=\"margin: 0;\"\u003e\n        True 3840 × 2160 output displays 8.3 million individually addressable\n        pixels. Fairways, greens, ball flight, course features and simulator data\n        remain sharp, clear and easy to see.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- GOLF SIM MODE --\u003e\n  \u003csection style=\"margin-bottom: 45px;\"\u003e\n    \u003cdiv style=\"padding: 30px; text-align: center;\"\u003e\n      \u003cp style=\"margin: 0 0 7px; color: #1e5631; font-size: 13px; font-weight: 700; letter-spacing: 1.3px; text-transform: uppercase;\"\u003e\n        Purpose-Built Picture Tuning\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"margin: 0 0 12px; color: #161616; font-size: 28px;\"\u003e\n        Dedicated Golf Sim Color Mode\n      \u003c\/h3\u003e\n\n      \u003cp style=\"max-width: 800px; margin: 0 auto 25px;\"\u003e\n        Optoma’s Golf Sim color mode enhances grass tones, brightens blue skies\n        and produces deeper course shadows for a more natural and immersive\n        indoor-golf experience.\n      \u003c\/p\u003e\n\n      \u003cimg src=\"https:\/\/region-resource.optoma.com\/static-resource\/A103026\/product\/ZH401e\/Golf%20Sim%20Mode%20on.jpg\" alt=\"Optoma Golf Sim color mode displaying realistic course colors\" loading=\"lazy\" style=\"display: block; width: 100%; height: auto; margin: 0 auto; border-radius: 12px;\"\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- DURACORE --\u003e\n  \u003csection style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 0; margin-bottom: 45px; overflow: hidden; background: #f5f5f5; border-radius: 14px;\"\u003e\n\n    \u003cdiv style=\"display: flex; flex-direction: column; justify-content: center; padding: 34px;\"\u003e\n      \u003cp style=\"margin: 0 0 7px; color: #1e5631; font-size: 13px; font-weight: 700; letter-spacing: 1.3px; text-transform: uppercase;\"\u003e\n        Lamp-Free Reliability\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"margin: 0 0 13px; color: #161616; font-size: 27px;\"\u003e\n        Up to 30,000 Hours of Laser Life\n      \u003c\/h3\u003e\n\n      \u003cp style=\"margin: 0;\"\u003e\n        Optoma DuraCore laser technology delivers consistent brightness, instant\n        on\/off operation and up to 30,000 hours of use in Eco mode without\n        purchasing or replacing traditional projector lamps.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cimg src=\"https:\/\/region-resource.optoma.com\/static-resource\/BMD\/Projector\/UX1\/ZK521ST\/1400x700\/ZK521ST_B_DuraCore_icon.jpg\" alt=\"Optoma DuraCore laser technology and 30,000-hour light-source life\" loading=\"lazy\" style=\"display: block; width: 100%; height: 100%; min-height: 300px; object-fit: cover;\"\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- INSTALLATION --\u003e\n  \u003csection style=\"margin-bottom: 45px; overflow: hidden; background: #161616; border-radius: 14px;\"\u003e\n    \u003cimg src=\"https:\/\/region-resource.optoma.com\/static-resource\/BMD\/Software\/SmartControl\/KV_w1400x700.jpg\" alt=\"Optoma Smart Control mobile projector alignment and management\" loading=\"lazy\" style=\"display: block; width: 100%; height: auto;\"\u003e\n\n    \u003cdiv style=\"padding: 32px; color: #fff;\"\u003e\n      \u003cp style=\"margin: 0 0 7px; color: #9dccaa; font-size: 13px; font-weight: 700; letter-spacing: 1.3px; text-transform: uppercase;\"\u003e\n        Flexible Installation\n      \u003c\/p\u003e\n\n      \u003ch3 style=\"margin: 0 0 13px; color: #fff; font-size: 27px;\"\u003e\n        Easier Screen Alignment and Control\n      \u003c\/h3\u003e\n\n      \u003cp style=\"margin: 0 0 15px; color: #eee;\"\u003e\n        Horizontal and vertical keystone correction, four-corner adjustment and\n        vertical lens shift help position the projected image on the impact screen.\n        The Optoma Smart Control app provides compatible mobile alignment and\n        device-management tools.\n      \u003c\/p\u003e\n\n      \u003cul style=\"margin: 0; padding-left: 21px; color: #eee;\"\u003e\n        \u003cli style=\"margin-bottom: 7px;\"\u003eFixed 0.79 throw ratio\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 7px;\"\u003eVertical lens shift from 104% to 125%\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 7px;\"\u003eHorizontal and vertical keystone correction of ±15°\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 7px;\"\u003eFour-corner image adjustment\u003c\/li\u003e\n        \u003cli\u003eSupports 4:3, 16:9, 16:10, Full, Auto and Native formats\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- FEATURE CARDS --\u003e\n  \u003csection style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; margin-bottom: 45px;\"\u003e\n\n    \u003cdiv style=\"padding: 24px; border: 1px solid #ddd; border-radius: 12px;\"\u003e\n      \u003ch3 style=\"margin: 0 0 9px; color: #1e5631; font-size: 20px;\"\u003e5,000 Lumens\u003c\/h3\u003e\n      \u003cp style=\"margin: 0;\"\u003e\n        Produces vivid simulator images in spaces where complete ambient-light\n        control might not be possible.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 24px; border: 1px solid #ddd; border-radius: 12px;\"\u003e\n      \u003ch3 style=\"margin: 0 0 9px; color: #1e5631; font-size: 20px;\"\u003eResponsive Gameplay\u003c\/h3\u003e\n      \u003cp style=\"margin: 0;\"\u003e\n        Rated at 16.7 ms for 4K\/60Hz and 8.6 ms for 1080p\/120Hz input.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 24px; border: 1px solid #ddd; border-radius: 12px;\"\u003e\n      \u003ch3 style=\"margin: 0 0 9px; color: #1e5631; font-size: 20px;\"\u003eQuiet Operation\u003c\/h3\u003e\n      \u003cp style=\"margin: 0;\"\u003e\n        A rated 29 dB operating level helps keep attention on the simulator experience.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 24px; border: 1px solid #ddd; border-radius: 12px;\"\u003e\n      \u003ch3 style=\"margin: 0 0 9px; color: #1e5631; font-size: 20px;\"\u003e24\/7 Capable\u003c\/h3\u003e\n      \u003cp style=\"margin: 0;\"\u003e\n        Designed to support continuous operation for commercial and entertainment installations.\n      \u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/section\u003e\n\n  \u003c!-- SPECIFICATIONS --\u003e\n  \u003csection style=\"margin-bottom: 45px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 18px; color: #161616; font-size: 27px;\"\u003e\n      Technical Specifications\n    \u003c\/h3\u003e\n\n    \u003cdiv style=\"overflow-x: auto; border: 1px solid #ddd; border-radius: 10px;\"\u003e\n      \u003ctable style=\"width: 100%; min-width: 600px; border-collapse: collapse; font-size: 15px;\"\u003e\n        \u003ctbody\u003e\n\n          \u003ctr style=\"background: #f4f7f4;\"\u003e\n            \u003cth style=\"width: 38%; padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eDisplay Technology\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003eDLP\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eResolution\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e4K UHD — 3840 × 2160\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr style=\"background: #f4f7f4;\"\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eBrightness\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e5,000 lumens\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eContrast\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e300,000:1; 2,000,000:1 dynamic\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr style=\"background: #f4f7f4;\"\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eThrow Ratio\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e0.79 fixed\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eOptical Projection Distance\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e0.89–2.93 m \/ approximately 2.92′–9.61′\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr style=\"background: #f4f7f4;\"\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eScreen Size\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e30″–300″ diagonal\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eLaser Life\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003eUp to 30,000 hours in Eco mode\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr style=\"background: #f4f7f4;\"\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eInputs\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e2 × HDMI 2.0 and 1 × VGA\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eControl Connections\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003eRJ45, RS232 and 12V trigger\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr style=\"background: #f4f7f4;\"\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left; border-bottom: 1px solid #ddd;\"\u003eDimensions\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px; border-bottom: 1px solid #ddd;\"\u003e10.8″ × 8.5″ × 4.5″ with feet\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003cth style=\"padding: 13px 16px; text-align: left;\"\u003eNet Weight\u003c\/th\u003e\n            \u003ctd style=\"padding: 13px 16px;\"\u003e6.6 lb.\u003c\/td\u003e\n          \u003c\/tr\u003e\n\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- CLOSING --\u003e\n  \u003csection style=\"padding: 34px; text-align: center; color: #fff; background: #1e5631; border-radius: 14px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 11px; color: #fff; font-size: 27px;\"\u003e\n      Build a Brighter, More Immersive Golf Simulator\n    \u003c\/h3\u003e\n\n    \u003cp style=\"max-width: 760px; margin: 0 auto; color: #fff; font-size: 17px;\"\u003e\n      With true 4K detail, powerful laser brightness, short-throw placement and\n      golf-specific picture tuning, the Optoma ZK521ST-B delivers premium\n      performance for home and commercial golf simulators.\n    \u003c\/p\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e","brand":"Optoma","offers":[{"title":"Default Title","offer_id":48182614589591,"sku":null,"price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/3341\/5319\/files\/e875DYi75qPhDS5u7fWma1Vcqx6i1UXjfnPNWYyK.jpg?v=1788105063","url":"https:\/\/gratergolf.com\/products\/optoma-zk521st-b-5000-lumen-4k-uhd-short-throw-laser-projector","provider":"Grater Golf","version":"1.0","type":"link"}