The image size plays an important role in viewing effect while the brightness of a projector determines whether you can see a clear image. In this guide, we will share how to decide the image size and brightness for a projector.

If the image is too small, users may find it difficult to see the content in the image. A big image can deliver an immersive and cinematic viewing experience. For conference scenarios, a big image can better and more effectively deliver the information in the projection image to the audience.

How to Decide The Image Size and Brightness for a Projector?

Generally, for 40-50 square meters of home or living room, the projector brightness is recommended to be no less than 1,000 ANSI lumens, and the image size can be 60 inches to 72 inches.

For a small conference room or standard classroom (60-100 square meters), the projector brightness is recommended to choose between 1,500-2,000 ANSI lumens, and the projection size can be 80 inches to 100 inches.

As for medium-sized conference rooms and classrooms(120-200 square meters), the projector brightness is recommended to choose between 2,000-3,000 ANSI lumens, the curtain corresponds to choose 120 inches to 150 inches.

You may be interested in Projector Screen Buying Guide.

Last, for large conference rooms or auditoriums (300 square meters), the projector is recommended to professional engineering projectors with 3,000-4,000 ANSI lumens. Its projection image size should be more than 200 inches.

To conclude, the projection size is positively related to the room size. In other words, the bigger the room, the bigger the projection size. In addition, a projector with high brightness can deliver clear and bright images in a big room.

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