Willcomes Bird Shape Touch-sensitive Dimmable USB LED Desk Lamp 3 Level of Brightness Table Light with Sapling Pen Holder for Bedroom Office Touch switch is applied to this lamp, and it has 3-levels of different brightness, single touch give lowest brightness, double touches medium and three touches the strongest can meet various demands of different environment. Rechargeable USB Charge Desk Lamp:Built-in 1200mAh Lithium battery,easy recharge this portable desk lamp via plug to computer usb port ,power adapter,power bank and etc. 360degree rotation: Flexible Neck suitable for use in office, bedroom, school, and reading. Easily Bends to Compact Position. Compared to traditional incandescent lamps, the LED brings the same level of brightness but consumes 75% less power. The saving it makes on your electricity bills will pay for itself over the long run. Life of up to 10 years. Size:10x10x41cm/3.94x3.94x16.14inches.