Touch Control Led Table Lamp, Rechargeable Battery USB Powered Desk Light, Bendable Tube, Eye Caring Dimmable Reading Light Desk Lamp, Adjustable Brightness Led Gooseneck Light for Bedroom Office Home Power by USB port,it can be powered by computer pc, laptop, power bank, usb charge adapter Dimmable touch switch and romote controller, you can turn on/off by touch switch or romote controller, and dimming brightness also can by touch switch or romote controller, both works well. Adjustable: the tube can be bended to any angle as you like 3-Level brightness adjustable,controlled by remote or sensitive touch switch,provide convenience to your life The LED lamp puts out bright white light with a reported color temperature of 5500 Kelvin. If you like bright, clean daylight light this lamp offers just that.