USB or Battery PoweredTwo power supply methods, the light can be powered by USB or 3 AA batteries (not included). Great for indoor and outdoor decoration. 8 Light Modes and Timer Dimmable, 7 dynamic changing modes and constant light mode are available. This curtain fairy light will cycle through 6 hours and 18 hours when you press the timer button. 2 Ways to ControlUse the remote control or the buttons on the battery case to select the mode, set the perfect ambience and perfect mood with the battery curtain lights. Safe and DurableWon't get hot and very low voltage, safe for kids and pets. This fairy curtain light is suitable for year-round use. Also suitable as a gift for family, friends and more. What You GetLED Curtain Light with a USB cable and a convenient remote control. USB or battery powered Power it with 3 AA batteries or use the provided USB cable to connect to a power bank, laptop, etc. Suitable for outdoor use, such as gardens, patios, gazebos. 8 modes and timer Provides seven dynamic change modes, one constant light mode and dimming function. Press the timer button and the light will cycle on for 6 hours and off for 18 hours. safe to use Low operating voltage ensures that the curtain light is safe and does not overheat. Safe for your family and pets.