Customized Lighting A 10% to 100% stepless touch dimmer allows you to easily adjust brightness. Switch between three color temperatures with a simple touch for lighting. Versatile Power Options Rechargeable builtin battery with universal USB charging. Connect to any USB interface, including laptops, computers, power banks, etc., for convenient use. Memory Function Dimming saves your last brightness setting so you experience consistent lighting without readjustment. Elegant Design and Performance Builtin 3200 mAh rechargeable battery provides 12 to 48 hours of use depending on brightness and color temperature. Suitable for a wide range of environments such as bedroom, study, office, living room, dining room, bar, cafe, etc. Use scenarios Desk or study nook: adjust brightness and color temperature for focused work or reading. Living spaces: warm, comfortable lighting for relaxing evenings with longlasting battery life. Hospitality or small venues: reliable USBpowered lighting that enhances ambiance with simple operation.