Gain the benefit of light therapy and a lamp with the HappyLight Duo. Emits full spectrum UV-free light with 10000 lux intensity. Choose from 3 HappyHue color temperatures - daylight warm light cool light. 360-Degree gooseneck makes it easy to reposition light. USB charging port offers convenient charging for devices. 7 Brightness levels. Easy touch control panel. Perfect for readers artists hobbyists and more. USB output: DC 5V 2.1A. Dimensions: 13.6" x 10.2" x 15.2".