MIU COLOR Eye Care LED Desk Lamp EYE PROTECTION AND ENERGY SAVING: LED chip, can work on steady current with natural white light and dimmable brightness, and eye protection. MODERN DESIGN: Lamp ring can move freely along the bending arm, upwards or downwards, left or right. Can work independently after charging. A good idea to use as a flashlight or emergency light. HIGH QUALITY: LED lifetime is up to 30,000 hours. EASY TO ASSEMBLE AND OPERATE: simple structure, two buttons to control the light, one on the base, and the other on the lamp ring. MULTIPLE FUNCTIONS: Dual USB ports on the base, very convenient to charge your mobile phones or pad.