What is a good lumens for a projector?

Related questions

1. What is a good contrast ratio on a projector?
2. How many lumens is good for a projector?
3. What is SVGA projector?
4. Is a Projector better than a TV?
5. What does auto iris do on a projector?
6. Can I watch TV on a projector?
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Tags

1. #images
2. #rating
3. #sufficient
4. #classrooms
5. #brightness
6. #projecting
7. #conference
8. #should
9. #clearly
10. #lumens
11. #often
12. #rooms
13. #brighter
14. #although
15. #large
16. #projector
17. #addition
18. #higher