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Brightness (Lumens): 2,500 or less
http://www.dukane.com/av/products/Item_dvProjectors.asp?Model=8111H
http://www.benq.us/products/product_detail.cfm?product=1723&pltag=6&ptag=50
http://www.dell.com/us/en/k-12/peripherals/projector-dell-s300/pd.aspx?c=us&l=en&refid=projector-dell-s300&s=k12