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 Pro9520WL, 5200 ANSI lumens, DLP, WXGA (1280x800), 16:10, 525.8 - 8933.2 mm (20.7 - 351.7"), 1 - 17 m Viewsonic Pro9520WL. 投影機亮度: 5200 ANSI lumens, 投影技術: DLP, 投影機原始解析度: WXGA (1280x800). 光源類型: 燈, 光源使用壽命: 1500 小時, 光源使用壽命（經濟模式）: 3500 小時. 焦點: 手動的, 變焦類型: 手動的, 光學變焦: 1.7 倍數. 類比信號格式系統: NTSC, PAL, SECAM, 支援圖像解析度: 640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 832 x 642, 1024 x 768 (XGA), 1152 x 864 (XGA+), 1152..., 支援影像模式: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. 串行接口類型: RS-232, HDMI 連接頭類型: 全尺寸