The number of lumens you need for a golf projector depends on a few factors such as the size of the screen, the ambient light in the room, and the distance between the projector and the screen. Generally, a golf projector should have a minimum of 2000 lumens to ensure clear and bright images in most indoor settings.
If you’re projecting onto a smaller screen or in a darker environment, you may be able to get away with a lower lumen count. However, if you’re projecting onto a larger screen or in a brightly lit room, you may need a projector with a higher lumen count, such as 3000-4000 lumens.
In any case, it’s always best to consult the manufacturer’s specifications or speak with a professional to determine the optimal lumen count for your specific setup.