Characteristics and Interoperability Northern light projector for galaxies Aurora projector lamps have a "U" shaped design, which gives them a more upscale and elegant appearance. The projection direction can be changed and supported steadily by the support design at the bottom. There are seven different types of projection effects available to mimic the aurora; you can choose to fix the effect you like or the projection effect circle. Additionally, you can use a remote control to change the projection effect's brightness and movement speed. To enhance the realism and beauty of the projection effect, incorporate a moon projection pattern. By enabling the "breathe," "blink," and "beat" modes, the green star in the new mode enhances the realism of the stars. Built-in "Bluetooth mode" Bluetooth music player that allows you to connect a smartphone to play