I reviewed the rating and I will give it three stars instead of one. This is because I was lucky and didn't throw it away. Thanks to a user who told me to disconnect the projector from the panel for a while and then reconnect it. I hope someone else reads this before throwing it away. Otherwise, for the price of 35-40 euros that I bought it for, it's okay for now. I had put it in its box and didn't have time to recycle it.

I'll leave the first review in case it helps someone.

It turned on when I took it out of the box and stayed on the first night. Then it died!!! Completely dead, as if there was no power anywhere. I also sent an email to the store where I bought it. If something changes, I will reconsider my rating. Unfortunately, this is my own experience.

To put things in perspective regarding this specific projector model, so that those interested know not to be fooled.

This particular solar projector does indeed have a 12,000mAh battery and lasts 8-10 hours with a full charge, but...
The brightness of the light is by no means 100W. Speaking with the manufacturing company, this projector is only 15Watt and produces around 600 lumens (not 6000 as mentioned here and in stores). The build quality of the projector is really good, except for the solar panel which is a bit disappointing. (It is not the one in the photo, the cells cover a smaller surface area).

The D901 model does NOT have a camera, unlike the DW901 which has a camera and is 20Watt in power, compared to the 15Watt as I mentioned for the D901 model.

I would buy it again, yes, but with the knowledge of the brightness of light that I require.

Very good construction and lasts quite a while if the battery is fully charged. However, I couldn't find anywhere, not even in the manual, which app to use for the built-in camera. If anyone knows, please mention it here. Thank you.