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-Resolution– Most computers have a resolution of 1024 x 768 pixels (XGA), so for the best picture quality the resolution of your projector should match that of your computer. Many laptops now use a wide screen format with a minimum resolution of 1280 x 768 (WXGA) pixels.

-Brightness–Projector Brightness is measured in ANSI Lumens. Portable Projectors range from around 1000 to over 3000 lumens in brightness. You need to consider ambient light and the size of your typical audience when selecting projector brightness. Larger audiences require larger screens, which means higher brightness. Many projectors also have an ‘Economy’ or ‘Eco’ mode, which reduces the advertised brightness and often also extends the lamp life. A typical 2000 ANSI lumen projector may run at 1500 ANSI lumens in Eco Mode.

• 1000 – 1200 lumens for lights off and low ambient light
• 1500 – 2000 lumens for rooms with some ambient light
• 2000 – 3500 lumens for brighter ambient light

-Lens / Throw Distance– When comparing projectors you will find the size of the lens varies from model to model. When choosing your projector consider the screen size you are looking to achieve and then where you will place your projector within the room.

-Features– Of the many different features found on portable projectors some of the more useful are:

• Remote Control with Mouse Control
• Wide Angle Lens – particularly useful for placing your projector at the front of a small room.
• Image Blanking Feature – allows you to change from one PowerPoint to another without showing the audience