Lightweight panel with super bright, uniform lighting. Embedded LEDs push light across unit and allow for an ultra-thin design at less than 3/8" thickness, with no hot spots. Energy-efficient LEDs are low heat and offer 50,000 hours of life. Removable acrylic face allows for media to be inserted into unit for tracing or display purposes. Plus, light emanates from the edges, causing an attractive halo effect when used as a display. Unit features a 1/2" black border; viewing area is 8-1/2 x 11".