Enjoy reduced eyestrain and crisp, ClearSun illumination throughout your home with this sleek, Recharge LED Desk Lamp. ClearSun LED technology comes close to the sun's spectral output and reduces eyestrain up to 51 percent. Rechargeable, lithium ion battery provides hours of use between charges. Use the included USB charging cord to recharge the battery and bring healthy light anywhere you need it. Lamp provides smooth, uniform light with a color rendering index of 97. Energy-efficient LED is rated to last up to 40,000 hours with a maximum output of 275 lumens. Lamp features three brightness settings and a flexible, silicone neck for a personalized experience. Height adjusts from 10" to 18-3/4".