This unit was used as a demonstration piece. It has not been sold or returned as has only been handled by professionals. Very low hours and all the original packaging. In order for SANYO to shorten the projection distance of the PLC-XL50, a new large diameter aspheric (non-spherical) lens and high-precision aspheric mirror technology was developed. A new optical engine was also developed, which enables an 80-inch projection from the ultra-short distance of only 3-inches (8 cm). This creates an opportunity to project extremely large images in any room or space that is available. The proprietary optical and cooling mechanism technologies used in the PLC-XL50 allow both vertical and horizontal projection. The new optical engine was created with a high-precision aspheric mirror combined with a distortion correction mechanism lens, enabling large magnification without distortion, even from ultrashort distances. To allow projection either vertically or horizontally, a special cooling mechanism was also essential. The resulting solution is a one-way flow system consisting of an air intake and exhaust mechanism on the main body of the projector -- thus allowing optimal positioning of the main components. By shortening the distance for projection, the options for installation are greatly improved, including floor, tabletop and wall mount projection. The variety of applications is almost limitless, providing effective, quick and easy presentations or displays. Projecting a large screen image on the floor in a pre-school creates a new style of teaching and classroom interaction. The PLC-XL50 presents a new avenue for education/instruction, "edutainment," specialized business viewing and informational attention-getting signage. Projection surface-oriented features include top and bottom keystone correction for proper alignment of the projector and a Color Board Mode, which allows adjustment of the hue when projecting an image on a color (non-white) surface so that it appears to be projected on a white surface. The additional Black Board Mode enables educational institutions to use the projector with all standardized educational boards. The PLC-XL50 turns on automatically when the power cord is plugged into an electrical outlet. With the Easy-Off function, it's possible to unplug the power cord without waiting for the machine to cool down, making it convenient for quickly clearing away the area after a presentation. The unit has been outfitted with a built-in, vibration sensor alert. An alarm sounds when the unit is picked up, proving to be an effective theft deterrent.