This is the USB-powered safe UV-C light that sanitizes the surface of your laptop computer or tablet without using harsh chemicals. Employing the same technology used to sanitize medical instruments, its five UV-C LEDs bathe the keyboard and touchpad of your device with germ destroying 260-285nm UV-C light. In independent laboratory tests, the UV-C light eliminated 99% of E. Coli and Staphylococcus on a surface within 1-5 minutes. A 10"-long flexible gooseneck suspends the light over your laptop for convenient hands-free disinfecting. With 5-, 10-, 30- and 60-minute cleaning cycles, child safety lock, and a motion sensor that switches the UV-C light to a standard LED when movement is detected to prevent exposure to skin. 15" L x 3" W x 1/2" D. (3 1/4 oz.)