Book Light Usb Rechargeable Flexible 1w 5 Led Clip Reading, 3 Brightness Modes. Features: 1.It's Powered by USB Charging Port 2.Its 2 Light Color (white, Warm White) and 3 Illumination Modes(white/ Warm White/ White & Warm White) Meet Your Different Requirement in Various Places. 3.4cm Clip Ranges Make It Can Be Used and Strong Bendy Tub Enable You to Adjust the Light Position As You Need. 4.5pcs SMD2835 LED Beads, Flicker-free and Anti-glare Light Without Strobes and Radiation, It Can Keep Your Eyes Away from Exhaustion. Be Used Perfectly with Music Stands, Bookshelves, Office Tables, Computer Desks, Headboards, Etc. 5.Mini in Size and Light in Weight Design Which is Excellent for College and University Students Who Need Suitable Lights for Reading and Studying or Wants to Bring It with You. 6.One Press Button for 3 Different Lighting Modes Operation, Convenient and Flexible. Specifications: Input Voltage: DC5V Powered: 1W Light Source:SMD2835 LED Light Color: 3 Color Illumination Modes (White/ Warm White / White & Warm White) LED Quantity: 5pcs (2pcs *warm White + 3pcs * White) Lumen Flux: 110lm Material: ABS Item Color: Black Powered Supply: 1pc 3.7V 1000mAh Rechargeable Lithium Batteries (Included) or AAA Battery(Not Include) Cable Length: 100cm Clamp for Gap Width: 40mm Tube Length: 180mm Lamp Length: 60mm Size: 75mm*65mm*100mm Package List: 1 * Clip Reading Lamp 1 * USB Cable .