Touch switch: 3 Color switching: short press to switch the light color: white light, warm white light and natural light switch. Long press stepless dimming. Product parameters: Rated voltage: DC5V Battery capacity: 3600mAh lithium battery (included) Charging time: About 5H High brightness lighting time: about 8H Low brightness lighting time: about 36H Color temperature: 3000-6000K Package included 1*table lamp (battery included) 1*USB rechargeable cable 1*English manual (Power adapter is not included in the package) White 4: White 1: White 2: White 3: USB model cannot be charged: USB model cannot be charged Features: Minimum brightness level as a night light can be used without disturbing your bedmate. Medium and maximum brightness level suitable for reading or studying Built-in 3600mAh rechargeable battery with USB interface design (without charger) --- the table lamp can be powered by USB charger, plug and play, usb laptop, cell phone adapter, usb car and etc Easy to use with clip base or stand --- The reading light comes with a clip holder. The maximum width for the clip: 50mm/1.97in, and placed on your desk or clipped to the edge when you want to read. It saves your space, protects your eyes and creates a fashion feeling 360 degree rotatable flexible design with adjustable twist tube - The angle and height of the lamp head can be adjusted depending on your needs. The super non-slip silicone pad coupled with its lightweight body makes it sturdy when placed in a standing position With 32 LED bulbs and 3600mAh long life battery. The frosted shade design is unique. Soft light is good and healthy for your eyes because it does not flicker or produce negative radiation