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 NEC U310W, 3100 ANSI lumens, DLP, WXGA (1280x800), 2000:1, 16:10, 77 - 100" NEC U310W. Projector brightness: 3100 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1280x800). Light source type: Lamp, Service life of light source: 2500 h, Service life of light source (economic mode): 3000 h. Focal length range: 4.42 - 4.42 mm, Aperture range (F-F): 2.71 - 2.71, Zoom ratio: Fixed. Analog signal format system: NTSC, NTSC 4.43, PAL, PAL 60, PAL M, PAL N, SECAM, Supported graphics resolutions: 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1360 x 768 (WXGA), 1400 x 1050 (SXGA+), 1440 x 900 (WXGA+),..., Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720p. Serial interface type: RS-232, HDMI connector type: Full-size, USB connector type: Mini-USB https://www.projectorreviews.com/nec/nec-u310w-interactive-projector-review/ Back to Top Ultra short throw for shadow free presentations and large images when projector is just a few inches away from the screen Optional Interactive software and pen that works with the IPad to bring teaching to a new level. Is 3D Ready s... Ultimately, the NEC U310W is a very good choice for the educational market as well as presenters who have to convey ideas in a very interactive way. The 3100 lumens of brightness that the U310W produces means you will have plenty of light output for just... When the NEC Display Solutions NP-U310W ($1,299 direct) showed up for testing, I was expecting to be impressed. It is, after all, a new design from the same company that introduced the WT610 ($6,000 street, 4 stars), which was one of the first ultra sh... Ultra short throw for big images from just a few inches, High quality data image, Better video than most data projectors, 3D is highly limited, Volume is loud enough for only a small to mid-size conference room, The NEC NP-U310W delivers a bright, high-quality data image and better video than most data projectors, with an ultra-short throw for a big image from just inches away. ... https://www.projectorcentral.com/NEC_NPU310W_short_throw_projector_review.htm The NEC NP-U310W short throw projector's features, particularly its bright image and near-excellent data image quality, makes it an attractive choice for anyone who needs an ultra short throw projector with 1280x800 native resolution....