ENHANCE USB Laptop Reading Light Clamp On Desk Lamp 7 LEDs & Flexible Metal Neck - Use as Work Light, Task Light & More - Attaches to Laptops, Desks, Tables & More NO BATTERIES REQUIRED: Plugs in to a USB port to provide light for reading or illuminating a workspace LOW POWER CONSUMPTION: 7 LED light configuration provides a bright glow to your environment with low power consumption FLEXIBLE METAL NECK with on/off button to provide light from various angles SPRING LOADED CLAMP conveniently mounts to most laptops, monitors, keyboards, desks & more surfaces up to 1.75 inches thick ; 36 inch cord length 3 YEAR WARRANTY: Backed by a 3 Year Manufacturer's Warranty Flexible metal neck USB power connection Clip on Design Bright LED Lighting