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 Epson EH-TW5100, 1800 ANSI lumens, 3LCD, 1080p (1920x1080), 16:9, 863,6 - 8331,2 mm (34 - 328"), 16:9 Epson EH-TW5100. Projector brightness: 1800 ANSI lumens, Projection technology: 3LCD, Projector native resolution: 1080p (1920x1080). Light source type: Lamp, Service life of light source: 5000 h, Service life of light source (economic mode): 6000 h. Focus: Manual, Focal length range: 1.9 - 20.28 mm, Zoom type: Manual. Supported 3D formats: Frame packing, Side by side, Top and bottom, Supported graphics resolutions: 1920 x 1080 (HD 1080), Colour modes (2D): Cinema, Dynamic. Serial interface type: RS-232, HDMI connector type: Full-size http://digitalmediaandit.com/epson-eh-tw5100-projector-review/ I've had Projectors for years and tend to hold on to them, so I'm not an addicted upgrader. My old unit is the INFOCUS Screenplay, which through the years has seen off many supposedly superior units (all down to the top notch video chip inside, the Infocu...