Product Features: 1. Multi-purpose Clamp - LED Clip on Light, Adjustable sturdy handy clip acts as a stable base with gooseneck arm, allowing the led lamp to stand on its own, clips to headboards, desks and tables to provide a stable light source wherever you need. 2. 3-LEVEL Adjustable Brightness book light . With touch-sensitive control panel, ultra-bright LED light provides a clear, bright spotlight for reading in the dark, camping, or emergency.Good choose for book light. 3.360 Flexible Goose Neck design - This led book light with flexible gooseneck tube to adjust its height and angle, 20 long life LEDs, ultra portable and lightweight. 4. Easy to use - Touch-sensitive switch offers 3 brightness levels, recharges via USB to laptop/computer or outlet via recharges via adapter.Book light for reading in bed. 5.USB Charge-- This battery operated lamp recharges via USB connection, you can use the mobile power charger. Single touch brightness up to 8 hours.Built in rechargeable battery 1200mAh Specifications Light Source: Highlight LEDs Rated Voltage: DC5V Dimmable: YES Material : ABS Plastic Height : 44cm Lamp diameter: 9cm Usage time: High 3-4 hour, Mid 6-7 hours, Low 8-9hours Package Contents 1 x Desk Lamp 1 x USB Cable