How about the star projector on the Internet?
Considering the principle of the light (shielding the light), it might not be worth it...... However, the key depends on the effect. The image on the wall is clear or not, depending on the power supply (recommended transformer), the brightness of the environment (the darker the better), and the size of the space (the fabled projection distance is 20 square meters).
Electrical appliances are best not to buy online, it is better to spend more money, at least their hearts comfortable
If you want to see clearly, push near, and blur away. After adjusting the distance, it still looks moving.
