The OttLite Swerve LED Desk Lamp is a great touch lamp for a variety of uses. Exclusive ClearSun LED technology optimizes illumination while helping reduce eyestrain by 51%. Easily adjust the 4 brightness settings with touch-sensitive control and the three color modes with touch-activated controls enable easy adjustments to meet your needs. With a flexible neck that extends 20", it easily adjusts the light angle over all your projects. Versatile illumination makes it perfect for everyday tasks.Details: Black20" (50.8 cm) flexible neckRegulate the LED lamp's brightness using touch controlsThree color temperature modesRegulate the LED lamp's brightness using touch controlsIncludes 5V, 2.1A USB port – fully charges tablets, phones and morePlastic, glass, steel, and acrylic