Nebula by Anker Mars II Pro 500 ANSI Lumen Portable Projector review. 1. Finally, the long-awaited Nebula by Anker Mars II Pro 500 ANSI Lumen Portable Projector has arrived. It took about two days to arrive, and it was delivered in a sturdy paper box in excellent packaging. 2. If you open the box, there is a charger and usb port I'm happy that it's all shipped in clean condition. 3. Finally, the..
