Plugged into notebook USB port provides light sufficient to view keyboard, read documents etc.The neck of the USB light is flexible and can be adjusted to the convenient position LEDs: 6 pcsPower consumption: up to 0.24 A, 1.2 W maxUSB port: AM-connectorMaterial: plasticDimensions: 170 x 18 x 9.5 mmNet weight: 15 g