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流明, WXGA (1280x800), 5000:1, 762 - 7620 mm (30 - 300"), 1.12 - 1.8 m, 10.73 亿色彩显示 Viewsonic PRO8520WL. 投影仪亮度: 5200 ANSI流明, 投影仪最佳分辨率: WXGA (1280x800), 对比度: 5000:1. 光源使用寿命: 2000 小时, 光源使用寿命（经济模式）: 2500 小时. 数字变焦: 2 倍数, 光学变焦: 1.6 倍数, 偏移: 115%. 串口类型: RS-232. 噪音水平: 33 dB, 认证: Mexico Energy test/Registration, EAC, TUVS Mark(Argentina), India BIS, FCC,CE EMC,CB,,CCC, ROHS,...