5 Colors * 5 BrightnessThis reading lamp has 5 light colors and each color has 5 brightness levels which try best to offer the brightness you want. Equipped with upgraded LED besds, you can easily switch it by simple press or long press Eye protectionCircular light from the lamp head simulates diffused reflection of natural light, reduces shadows multiple, a clear view, no flash, no glare, it won't strain your eyes even long time standing in the light Sturdy clip and 360 flexible neck]Extra strong clip grips almost anything or uses it standing.Perfectly clip to desks, tables, computer desks, etc. The flexible neck allows you to bend and twist to any angle you like High Capacity & USB RechargeableBuilt-in 2500mAh USB rechargeable reading light, lasts 100-day lifespan. the battery longer than others. USB charging lets you take it anywhere, can be charged by power bank, computer, laptop Size: 25 Clip Light Settings SPECIFICATION: Color Temperature: 3000-6000K Voltage: 5V Charging time: 3-5h Package size: 125 x 70 x 212mm Materials Science: ABS.Silicone Hose Lighting Parameters: 25 settings = 5 colors x 5 brightness > Battery life: working hours from brightest to darkest are 4 hours, 8 hours, 12 hours, 18 hours and 32 hours Package includes: LED Reading Light USB Cable > Instruction Manual Note: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the product. 2. Due to different personal measurement techniques, there may be a physical error. Thanks!