Mingkeda LED Desk Lamp with 5V/2A USB Charging Port Eye-Care Folding Table Lamps, White Wall Lamp VISION FRIENDLY LED LAMP: No flickering, anti-glare, and no ghosting protects your vision and reduces eye fatigue. TOUCH CONTROL: Touch or slide your fingers along the groove to set the brightness. PORTABLE DESIGN: The lampshade can be folded up and down at 180, rotated at 225. ENERGY SAVING: Compared to traditional incandescent lamps, the LED brings the same level pf brightness but consumes 80% less power. RECHARGEABLE EMERGENCY LIGHT: Built in up to 1800mA lithium battery, long life time, can be charged by the USB port