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 PRO8520WL, 5200 ANSI lumens, WXGA (1280x800), 5000:1, 762 - 7620 mm (30 - 300"), 1,12 - 1,8 m, 1.073 billion colours Viewsonic PRO8520WL. روشنایی پروژکتور: 5200 ANSI lumens, Projector native resolution: WXGA (1280x800), (نسبت کنتراست (معمولی: 5000:1. Service life of light source: 2000 h, Service life of light source (economic mode): 2500 h. بزرگنمایی دیجیتال: 2x, زوم اپتیکال: 1,6x, انحراف: 115%. نوع رابط سریال: RS-232. سطح نویز: 33 dB, گواهی: Mexico Energy test/Registration, EAC, TUVS Mark(Argentina), India BIS, FCC,CE EMC,CB,,CCC, ROHS,...