Note: 3 color change: long press to change the light color: white light, warm white and natural light to switch between them. Short press 3 dimming levels. 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 1200mAh Rechargeable Battery with USB interface design (without charger)---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. The super stable base with its lightweight body makes it sturdy when placed in a standing position. With 20 LED bulbs and a long-lasting 1200mAh battery. The design of the frosted lampshade is unique. Soft light is good and healthy for your eyes because it does not flicker or produce negative radiation. Built-in 1200mAh lithium-ion battery with sufficient capacity. The battery capacity does not break down after 300 times of charging and discharging. That is, it is fully charged once a day and then used for a day, and it is close to 300 days to ensure that the lighting time after fully charged is still stable. Product parameters: Rated voltage: DC5V 1A-2A Battery capacity: 1200mAh lithium battery (included) Charging time: about 5H High brightness lighting time: about 3H Low-light lighting time: about 24H Color temperature: 3000-6000K