Saving More with the Advanced LED Technology Adopting ams OSRAM’s Ostar Projection Power LED technology, the LED projector is both energy saving and cost efficient, consuming less energy than competing lamp-based projectors.​ Enhanced Brightness for Business/Education Environments Thanks to the latest LED technology, the LS510WE achieves a major brightness breakthrough to 3,000 ANSI Lumens. With extreme-high contrast ratio of 3,000,000:1​, the projector ensures bright and detailed images in dim or lit environments.​ Present the Best with Vibrant Colors ​ Impress any audience with ViewSonic’s exclusive color technology, covering wide color gamut, Bring your presentation with a true-to-life color experience.​ Specifications: Projection System: 0.65'' WXGA Native Resolution: 1280x800 Brightness: 3800 (ANSI Lumens) Contrast Ratio: 3000000:1 Display Color: 1.07 Billion Colors Light Source Type: LED Light Source Life (hours) with Normal Mode: 30000 Lens: F=2.56-2.68, f=22-24.1mm Projection Offset: 100%+/-5% Throw Ratio: 1.55-1.70 Optical Zoom: 1.1X Digital Zoom: 0.8x-2.0x Image Size: 30"-300" Throw Distance: 1m-10.98m (100"@3.34m) Keystone: +/- 40° (V) Audible Noise (Normal): 34dB Audible Noise (Eco): 28dB Input Lag: 16ms Resolution Support: VGA(640 x 480) to FullHD(1920 x 1080) HDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Horizontal Frequency: 15K-102KHz Vertical Scan Rate: 23-120Hz