9 adjustment levels and 3 color modes: 9 LEDs * 3 colors * brightness adjustment. Press the button to select 3 different color modes: warm white (5 warm LEDs), cool white (4 white LEDs) and mixed color (all 9 LEDs on). And long press to adjust the high and low brightness of each color mode (100%-20%), there is always a suitable brightness for you to meet your reading and working needs. Soft LED Light Protects Your Eyes: The reading lamp uses a non-glare, non-flickering LED light source for maximum eye protection while reading. Bring you great convenience and prevent eye strain. 1000mAh USB Rechargeable Battery with Indicator: Gritin LED Reading Light has a built-in 1000mAh high-performance rechargeable battery, which lasts 5-7 hours at high brightness and 60 hours at low brightness. You can charge anytime with the included 1M USB cable. 360 flexible neck and sturdy clip: 360 flexible silicone gooseneck allows you to adjust the light to any whatever angle you need, giving you 360 omnidirectional lighting. The dual purpose clip can be used alone or attached to books, desks, computers and beds. Non-slip pads on each side of the clip hold items securely, saving you from constant adjustments. Portable and Widely Used: The LED reading light is small in size, very compact, foldable and very convenient to carry. Whether you are camping or traveling, it is the perfect companion for your night use. Due to manual measurement, the product you receive may have a slight error in size Due to different monitors, the product you receive may be slightly different from the picture Actual delivery quantity 1 piece black