Energy-saving & Eye-friendly: Endowed with 28 premium LED, the light source is brighter,clearer, stable, and non-flickering, making it easy on the eyes and reducing eye strain from long hours of reading. 3 Color Modes Meet All Needs: 3000K warm light, 4500K natural light, and 6500K cold white light are all available in this LED reading lamp. Warm light is great for relaxation like bedtime reading whereas cool light helps stimulate your concentration while studying or working. Touch Control & Stepless Dimming: Smart touch panel allows you to activate your favorite light color /brightness setting at ease. Stepless dimmable brightness gets you precisely desired luminosity. Short press to change color modes; Long press to adjust brightness USB Rechargeable & Longer Battery Life: Built-in 1800mAh battery ensures it can be fully recharged in 3 hours for wireless continuous use of 3.5H~50H. It also comes with a USB cable (1M in length) so you can easily power it from a USB socket, notebook, PC, or adapter (Max 5V/1.3A support). 360 Flexible Gooseneck & Versatile Usage: Fully rotatable gooseneck means it can be adjusted to any optimal viewing angle as needed. Moreover, featured with stable base and wide clamp opening,our clip-on light can be used as a table lamp standing on its own or clipped to the edge of a book, table or headboard.