adjustable brightness and color temperature: The lamp has three light modes – white light, warm light, and a combination of both. With a simple touch, you can switch between these modes and vary the brightness to create the perfect atmosphere for different activities. Long battery life: The desk lamp comes with a built-in 600 mAh polymer battery, which can be easily charged in just 2 hours. With a battery life of up to 4.5 hours, you can enjoy longer use without having to recharge. Energy-efficient LED lighting: With seven high-quality LED lamp beads, the reading light emits a pleasant and flicker-free illumination. Smart design: With its compact size and practical clip, the clamp light is easy to place and placed exactly where you need it. The touch-sensitive control panel allows for easy control. Specifications: Material: ABS Size: 22 x 8 x 4 cm Temperature: 1800-6000K Battery capacity: 600 mAh Charging time: 2h Battery life: 4.5h Lamp beads: 7 (3 warm yellow lamps, 4 white lamps) output: DC5V 1A Voltage: Less than 36V Max power: 1.4W Settings: Three light colors by tapping (1 tap white light, 2 taps warm light, 3 taps warm white light, long press for stepless dimming) Package includes: 1 x clamp lamp 1 x USB charging cable Operating instructions