Patented technology proven to continuously clean and sanitize your space. Proprietary, exclusive OttLite ClearSun LED technology -- reduces eyestrain by 51%. Integrated Qi charging stand -- holds phone at perfect viewing angle while wirelessly charging your phone. Includes 5V, 2.1A USB port to fully charge smart phones and tablets. 3 brightness settings and touch-activated controls. Height adjusts from 14 to 23 inches with flexible neck. Base measures 5 x 4 inches.