Cool, clean, bright illumination. Ultra Bright LED Light Panel provides an ideal surface for exploring not only light and color but also shape and shadow. Although a valuable asset for all, light panels are an essential resource for low vision children. Slim and lightweight yet tough. Portable. Rounded edges for safety. Easy to wipe clean. Easily adjusted light settings go from low to medium then high to insure comfortable illumination. While a lock function prevents unintentional turn-off. Includes low voltage power supply. Estimated life span for the low energy LEDs is 50,000 hours. Ultra Bright LED Light Panel comes with an informative guide. Measures approximately 18″L x 13 3/8″W x 1/4″H.