Panasonic PT-RZ370 series non-lamp projectors use a LED/ Laser-combined light source to change the way you work. The ideal solution for educational institutions, Panasonic's first lamp free projectors deliver an exciting standard in professional reliability. The PT-RZ370 features 3, 500 lumens of brightness. The rate of brightness deterioration in the LED/ Laser-combined light source is extremely slow compared to lamp-based projectors. The Solid Shine drive uses a built-in sensor to constantly detect the light intensity of the light source & correct corresponding changes in white balance. This all helps to maintain excellent picture quality for a long period of time. Contrast is outstanding too, at 10, 000:1, & images are reproduced with a wide dynamic range. The PT-RZ370 also features a Full-HD (1, 920 x 1, 080) DLP chip, allowing highly detailed Full-HD images without resizing. In 1-chip DLP system projectors with conventional lamp, a color wheel is used for time-division multiplexing in a method where the human eye combines the result to achieve a full-color palette. In the PT-RZ370, this is done by on/off switching of the LED/ Laser-combined light source.