Features:[No Screen Glare]It Has An Asymmetric Optical Design, Which Only Illuminates The Table, Not The Screen, And Avoids Reflected Glare.[Customizable Illuminance]The Light Brightness Can Be Adjusted Between 10%-100%. For The Color Temperature, There Are Warm White, Natural White, And Pure White To Choose From. The Memory Function Can Memorize The Color And Brightness Of The Light, Which Can Be Adjusted Freely And Easy To Maintain Personal Settings.[Easy To Install And Use]No Screws Or Tapes Are Needed To Damage The Monitor. The Clip Is Suitable For Monitors With A Thickness Of (About 50-40mm/0.19-1.57inch). The Lamp Can Be Used With Computer USB Ports, Mobile Power Supplies And Others With USB Sockets. DC 5V Electronic Equipment.[Save Desktop Space]The Space-saving Design Makes Your Computer Monitor Light Steadily Located On The Top Of The Display, Saving Valuable Space On The Desk, Very Suitable For Limited Working Space In The Office Or Home.[Eye Care]The 3 Color Temperature Options That Provide Focus And Comfort. Warm Light Makes Relaxing Cold Light Work, Thereby Improving Work Efficiency. Adjustable Brightness Level Makes The Work Space Healthy For The Eyes.Specification:Colour: Black Light Source: Cold And Warm Dual-colorLED Light: Positive White Light, Neutral Light, Warm LightColor Temperature: 3000K-6500KColor Rendering Index＞85Size: 50*10.4*6.5cmSuitable For: LaptopMaterial: ABS, PCLed Type: SMD3014Number Of LEDs: 78pcsWattage: Maximum 5WVoltage: DC 5V (USB Connector)Packing Included: 1 X USB Computer Lamp 1 X Instruction Manual 1 X Storage Bag 1 X Sucker 1 X Velcro