The number of lumens depends on your situation:
If you only want to watch at night and want a cheaper model, it is best to go for a projector with 5000 lumens = 150 ANSI lumens
If you want to use the projector with a little daylight, we recommend a model with 10,000 lumens = 330 ANSI lumens
If you really want to watch during the day, we recommend a model with 20,000 lumens = 660 ANSI lumens
For the best results, we recommend purchasing a projector with a NANO ALR projection screen. This ensures that the projector has a higher contrast, is more visible in daylight and the brightness is higher.