Note: 3 color change: short press to change the light color: white light, warm white and natural light to switch between them. Long press step dimming. Features: Minimum brightness level can be used as a night light without disturbing your bedmate. Medium and maximum brightness level is suitable for reading or studying Built-in 2000mAh Rechargeable Battery with USB interface design (without charger) --- the table lamp can be powered by USB charger, plug and play, laptop USB, mobile phone adapter, car usb and etc Easy to use with Clip Base or Stand --- the reading light comes with a clip holder. The maximum clip width: 60mm, and placed on your desk or fixed on the edge when you want to read. It saves your space, protects your eyes and makes you create the feeling of fashion 360 Degree Rotatable Flexible Design with Adjustable Twist Tube -- the angle and height of the lamp head can be adjusted to your needs. Super non-slip silicone pad combined with its lightweight body makes it sturdy when placed in a standing position With 24 LED bulbs and a long-lasting 2000mAh battery. The design of the frosted lampshade is unique. The soft light is good and healthy for your eyes because it does not flash or produce negative radiation Product parameters: Rated voltage: DC5V Battery capacity: 2000mAh lithium battery (included ) Charging time: about 5H High brightness lighting time: about 3H Low brightness lighting time: about 24H Color temperature: 3000-6000K L Package includes: 1*table lamp(battery included) 1*rechargeable USB cable 1x English manual