Comfortable & Adjustable Brightness: Designed with 18 LED bulbs (18 lumens), giving natural, non-flickering light that won't hurt or strain your eyes. And there are 3 light modes, you can adjust the brightness simply& nbsp; & nbsp; by touching the switch.USB rechargeable battery: extraordinary battery life with built-in rechargeable 1200 mAh battery and USB charging cable, you can use the strong light up to 3 hours after full charge, and the indicator light will go on& nbsp; & nbsp; from red to green when fully charged.Portable and flexible: The reading light features small size and compact design, which makes it very easy to carry. The sturdy and flexible gooseneck (360 degrees) allows you to position your light wherever you want.Application: perfect for reading, work, study, emergency use, suitable for study, office, bedroom, living room, dormitory, also perfect as a night light for baby's room