Use of the laser & LED hybrid light source makes Casio’s GREEN SLIM projectors the world’s first data projectors bright enough (2,000-3,000 lumens) for projection in a well lit room without using a high-pressure mercury lamp. Usability features have also been greatly improved: the body, no bigger than the size of a standard 8 1/2 x 11 piece of paper, is slim (1.7 inches) and lightweight (5 lbs).  Additional qualities include: the projector produces bright colors through upgraded color purity,  the light source has a life of approximately 20,000 hours, projection at maximum brightness is possible in a minimum of eight seconds and no cool down is needed when turning the projectors off.