RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS Viewsonic PRO8300, 3000 ANSI lumens, DLP, 1080p (1920x1080), 4000:1, 30 - 300", 35.4 - 393.7" (0.9 - 10 m) Viewsonic PRO8300. Projector brightness: 3000 ANSI lumens, Projection technology: DLP, Projector native resolution: 1080p (1920x1080). Service life of light source: 2500 h, Service life of light source (economic mode): 4000 h. Focus: Manual, Zoom ratio: 1.5:1, Throw ratio: 1.4 - 2.1:1. Analog signal format system: NTSC, PAL, SECAM, Supported graphics resolutions: 720 x 576, 1280 x 720 (HD 720), 1920 x 1080 (HD 1080), 854 x 480 (WVGA), Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720p. USB connector type: USB Type-A https://www.pcmag.com/review/311906/viewsonic-pro8300 Home theater projectors offering 1080p (1,920 by 1,080) native resolutions have become commonplace; movie buffs and many typical consumers would settle for nothing less now. What's unusual about the ViewSonic Pro8300%displayPrice% at %seller% as a full HD... 1080p full HD resolution. Dual HDMI ports. 1.5x zoom. Text could be sharper. Rainbow effect in video. Soft sound for two 10-watt speakers The ViewSonic Pro8300 is unusual for a 1080p projector in that it's geared to data presentations rather than video.... https://www.projectorreviews.com/viewsonic/viewsonic-pro8300-dlp-business-projector-review/ The PRO8300 comes in a lightweight, compact package that enables it to be easily moved from one venue to another. There are two built-in ten-watt (each) speakers that allow the PRO8300 to be used in most venues without external speakers. To enha... The Viewsonic PRO8300 does not dazzle with features, but instead targets a specific market quite well.  Most high resolution multimedia projectors also come with a fairly high price, well above that of the PRO8300's sub-$1000 street price.  While the PRO8...