Features: 1. 100% new brand with high quality, Clip design, can be on your screen or keyboard. Energy efficient LED design up to 100,000 hours. 2. USB LED book light with clip, flexible metal tube, easy to adjust in any direction. No external power is needed, just turn on the laptop or PC and turn on the switch to work. 3. Low power consumption, soft LED lights. Very suitable for use in the dark without disturbing roommates. 4. USB powered, no battery required. The idea of lighting laptop or PC in the dark, with ON/OFF switch design. 5. Attach the light directly to the screen or keyboard, then plug the USB light into the USB port of the laptop or PC. Description: Low power consumption, soft LED lights. Very suitable for use in the dark without disturbing roommates. USB powered, no battery required. The idea of lighting laptop or PC in the dark, with ON/OFF switch design. Specifications: Material: Aluminum Alloy Rated Power: 3W Light source type: imported LED high-power lamp beads Input voltage: DC 3.5-5V Light color: purple light Power mode: USB power supply Wave length : 395 Size: 13x7x7.5CM Package include: 1pc*USB night light Notes: 1. Please accept 0-1 inch error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object.