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Just got this projector for our classroom and I had to express the joy I have with it. This projector works absolutely well in classrooms, especially classrooms such as the one I teach in, since space is restricted, the short throw technology on this unit is brilliant. It projects 81 inches of display at only 1 meter of distance from the lens to the board! That is amazing; I am speechless every time I see it. The brightness of the projector is also a great advantage as it can perform in semi-bright conditions. It is important to note that in a teaching environment absolute darkness is not ideal, as students would fall asleep or strain their eyes from taking notes. So ideally a projector would have to work with surrounding lighting conditions.
Although this projector is 4:3 aspect ratios (1024x768) it can adapt to 16:9 displays and works fairly well. However, for teaching purposes I prefer the 4:3 aspect ratios, I believe students prefer it as well, as it pictures documents and PowerPoint's more proportionally. If 1024x768 is not enough you could max the resolution to 1280x1024. This projector offers a lot for the very affordable price that it sits at. This projector is a great device for space constraint teaching environments, with an extremely bright bulb and high contrast, it is one of the most adaptable and ease-to-use projectors I have worked with.