Touch Control Stepless Dimming Lamps: It has 3 color temperatures (warm light, neutral light, white light). Tap the button to change color temperature, long press to adjust the brightness from 5% to 100% (with brightness memory function). With the very dim set, it's good to be a night light for bedside, while with bright set, it's also a nice decor for living room windowsill, hallway and balcony, or as a daily light supplement for work. Portable Cordless Mushroom Lamps: These battery operated lamps boast a charming mushroom shape. Built-in 3600mAh rechargeable battery, charge with USB-C, fully charged in 5-6 hours after fully discharged. Battery runtime 8-40 hours depending on the brightness used.