The unit comes with a clip that allows be to attach it to your desk. The stable clamp and the flexible goose neck make it stay where positioned. There are 3 modes - high￡? off￡? low. Each press of the switch provides one of the 3 modes. Especially￡? the light is sleek￡? artistic and creates no heat. <br><br><strong>Features:</strong> <br>LED light source without stroboscopic￡? free from glare￡? short-sighted preventable￡? no ultraviolet ray￡? no high frequency radiation and it gives out natural￡? soft and evenly light￡? perfect for reading and protecting your eyes. <br>Totally 3 modes with a switch to control: high￡? off and low. <br>USB port design￡? can be powered by USB charger￡? USB power bank or laptop. <br>Easy to use and high feasibility: LED clamp light can be clamped on the edge of desk￡? bookshelf￡? bedside and so on. The flexible metal tubing can be rotated￡? so the light can be from arbitrary angel with any intensity control. <br>Good durability: LED table lamp is made of aluminium alloy with finished￡? polished￡? electroplated￡? anodized surface ?and the ?alloy aluminum -made lamp ?holder offers good heat dissipation. <br>Widely used for reading￡? desk lighting￡? bedside reading￡? working computer lighting￡? dresser lighting￡? etc. <br><br><br><strong>Specifications:</strong> <br>Item type: USB table lamps <br>Switch type: High￡? off￡? low <br>Light source: 18pcs 2835 LED <br>Power: Max. 6W <br>Illumination: 400-600LUX <br>Light color: White(6000-6500K); warm white(3000-3500K) <br>Input: DC 5V <br>Shell color: Silver? <br>Item size: 22 * 45cm / 8.7 * 17.3in?(light head * tube length) <br>Cable length: About 150cm / 4.92ft <br>Item weight: 370g / 13.0z <br>Package size: 30 * 12.5 * 8cm / 11.8 * 4.9 * 3.1in <br>Package weight: 487g / 17.20z <br><br><strong>Package List:</strong> <br>1 * LED Lamp