Specifications: 5 watt ultra low power consumption. 28 astigmatism LED lamp heads, ensuring enough bright, super bright white light source, with switch. Long life LED, life expectancy of more than 100,000 hours. Flexible metal bellows can do all directions, free bending, angle adjustment, wide width clips, where to clip, which is flexible and convenient. Small size, light weight, easy to carry, very easy to put in a briefcase or folder. No external power supply, directly from the inserted USB port to take power. Super power-saving, power consumption is less than 40mA. Can softly illuminate the keyboard without affecting other people around. White LED can ensure clear vision in the dark, when you go online or play games at night, turn off the big Lights, plug in such a USB light, protect your eyes is not easy to fatigue, but also save electricity costs, and can not affect the rest of others, let you enjoy the fun of the network and games. For laptops, desktop computers, etc. Item Name: Desk Lamp Material: PVC + Metal Power Supply: USB Charge Or 3 x AAA Batteries (Not Included) Power: 5W Features: Portable, Gooseneck, Clip-on, Stable, USB Light Lamp Size: 90mm x 40mm x 8mm/3.54" x 1.57" x 0.32", Clip: 8cm x 4.5cm x 4cm/3.15" x 1.77" x 1.57", Neck Length: 25cm/9.84", USB Cable Length: 100cm/39.4" (Approx.) Notes: You will find more amazing products if you visit our store. Due to differences in lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurements,allow for slight size differences. Package Includes: 1 x Desk Lamp 1 x USB Cable