What does lumens mean for projectors?

Related questions

1. How many lumens do I need in a projector?
2. Can projectors damage eyes?
3. How many lumens is good for a projector?
4. How do you check the life of a projector lamp?
5. What is the life of a projector?
6. Are projectors better for your eyes?
7. How many hours does a projector bulb last?
8. How does a DLP projector work?
9. Are wireless projectors any good?
10. Do LCD projectors have lifespan?

Tags

1. #measured
2. #equal
3. #brightness
4. #light
5. #where
6. #lumens
7. #projector
8. #which
9. #range
10. #being
11. #rating
12. #likely
13. #ambient
14. #higher
15. #brighter
16. #lumen
17. #minimum
18. #theater
19. #projectors