Part of the Ottlite Wellness Series, the Revive LED Desk Lamp features healthy lighting technology plus a USB charging port and round diffuser that mimics the look of traditional bulbs. Enjoy a healthier way to see with the OttLite's ClearSun LED, an exclusive technology that helps to dramatically reduce eyestrain and glare by up to 51 percent. It comes as close to the sun's spectral output as you can get and provides smooth, uniform light with color rendering index (CRI) of 97. Energy-efficient LED is rated to last up to 40,000 hours. Maximum output is 400 lumens with three brightness settings and touch-activated control. Height adjusts from 6-1/2" to 15-1/2" to better direct light to where you need it. Three adjustable knobs allow precise positioning of light. The 5-volt, 2.1A USB port fully charges tablets, phones and more.Part of the Ottlite Wellness Series, the Revive LED Desk Lamp features healthy lighting technology plus a USB charging port and round diffuser that mimics the look of traditional bulbs. Enjoy a healthier way to see with the OttLite's ClearSun LED, an exclusive technology that helps to dramatically reduce eyestrain and glare by up to 51 percent. It comes as close to the sun's spectral output as you can get and provides smooth, uniform light with color rendering index (CRI) of 97. Energy-efficient LED is rated to last up to 40,000 hours. Maximum output is 400 lumens with three brightness settings and touch-activated control. Height adjusts from 6-1/2" to 15-1/2" to better direct light to where you need it. Three adjustable knobs allow precise positioning of light. The 5-volt, 2.1A USB port fully charges tablets, phones and more.