EIKI's ultra short throw EK-55LU projector features 5,500 center lumens brightness with 80% uniformity, a 5,000,000:1  contrast ratio, a long-life 20,000 hour Laser + Phosphor Light Source, an ultra short throw (0.235 : 1) manual focus lens, and is ideal for classroom settings.  The projector supports analog and digital video input in all colour standards up to 1080p, and further supports 4K video input via HDMI.