Touch Switch: The touch switch of this USB LED light is thoughtful and convenient to use, you just need to touch the lamp head sensor switch, long press the button to adjust the brightness, release the button to get the brightness you want, then long press to adjust the brightness. Dim light, short press the button to turn it on or off. FLEXIBLE AND STRONG: These LED reading lights have a 360 degree flexible gooseneck, made of aluminum alloy, durable and flexible to bring the light where you want it 10 LED lights: There are 10 LED light beads in these USB laptop lights, enough for you to read, write or use in the most occasions, you can rotate the light as you wish to provide plenty of light in low-light areas, without disturbing. your roommate, when you share the room with others Lightweight and portable, you can take them anywhere and use them anytime, anywhere without recharging or batteries for your convenience; what's more, they can be great gifts to share with your family or roommates. Easy to use: just plug this touch lamp into the USB port of your laptop, computer, power source portable power supply, USB socket, etc. and enjoy reading, all your computer tasks and camping.