Up to 300 ultra large screen with lower cost-per-inch The LS740W belongs to ViewSonic's Luminous Superior series, a lamp-free high-brightness projector line-up designed for commercial and educational spaces. With its adoption of the 3rd generation laser phosphor technology, it delivers 5,000 ANSI Lumens for up to 30,000 hours, ensuring bright and vivid images without lamp replacement With its adoption of the 3rd generation laser phosphor technology, it delivers 5,000 ANSI Lumens for up to 30,000 hours, ensuring bright and vivid images without lamp replacement. ViewSonic LS740W 5000 Lumens WXGA Laser Projector with 1.3x Optical Zoom, H/V Keystrone, 360 Degrees Projection for Auditorium, Conference Room, and Education 5000 Lumen Viewsonic LS740W Laser Projector - Future Visuals With 1.3 X Optical Zoom 5,000 ANSI Lumens offering bright images in any environment ViewSonic LS740W White Projector Price in BD This projector features a 1., 3x optical zoom, H/V keystone, 4 corner adjustment, 360° projection, and a portrait mode for easy setup and versatile applications. The lamp-free design offers an eco-friendly and cost-effective solution, while the projector‘s lightweight and compact design reduces transportation costs.