Power by 4 x AAA batteries (Not Included) or USB cable (Adapter not included).
Operation Manual: You can chose the different power operation methods, USB Cable or Batteries: Insert 4*AAA batteries into the battery. TO USE IT AS A LAMP, YOU NEED TO PUT THE LID ON. IF YOU WANT IT TO BE A PROJECTOR, JUST TAKE OFF THE LID. Three Options: A: The Nightlight (warm light). Press A again to shut off. B: Switches the light colors (monochrome light or colorful light overlay). Note: Press B Button 9 times in a row to turn off option B. C: Controls the rotary switch (rotate or do not rotate) Note: Press C again to shut off the rotation.