To ensure it rotates please press the B button for 2-5 seconds. This can be used either with 3 AA batteries (NOT included) or USB. Suitable in a child's bedroom.
A Button - Power and Lighting Modes Control button.
1st-3rd button press : shift single light color in turn
4th button press : auto change light color
5th button press : mix color constant on
6th button press : mix color fade in and fade out
7th button press : turn off
B Button - Brightness and Rotation control button.
Short press to adjust brightness as 100% - 50% - 5%
Long press for about 2s to control rotation function