ANSI LUMENS will be the most often recognized sector conventional brightness measurement. The ANSI lumen ranking measures the brightest white that a projector can develop by averaging 9 light meter measurements taken over the projected image. The InFocus IN138HD delivers keystone correction for image alignment. Press the "Keystone" button over https://stephenixcww.digiblogbox.com/53672315/5-essential-elements-for-in138