Guide to Business Projectors Lamps

Projectors come in a wide range of light outputs, which are measured in ANSI lumens or just “lumens” for short. The brighter the projector, the higher the ANSI lumen rating, and (all else being equal) the more it costs. Contrary to popular belief, brighter is not always better, and there is no hard-and-fast rule regarding optimum lumen output. However, there are certain factors to consider to make sure your projector is neither too for your intended bright nor too dim use.

Things to Consider When Choosing Brightness
Answering the following questions will help you determine the optimal brightness of your projector.

  • How many people will typically be in the room? This determines the size of the projected image that is required for easy viewing by everyone present. As the number of people in the room increases, the image size must increase. This diminishes the perceived brightness of a given projector as the light is spread over a larger area.
  • How much light is in the room? A dark room will provide the best image regardless of projector brightness. However, most meetings require some lighting for note-taking and eye contact. A room where the lights cannot be turned off or dimmed or where windows cannot be blocked will require a bright projector. The same projector placed in a perfectly dark room will likely be so bright that it will give your audience a headache, so this is a critical factor.
  • What kind of screen is available? This can have a profound effect on the image brightness and quality. Most projection screens today provide significant light reflection, making even a relatively low-brightness projector look good in the proper setting. If the room lacks a projection screen, you will be better served by a high brightness projector since walls are usually poor reflectors of light.
  • What is your application? Applications such as training and workgroups will demand more brightness, because these applications also require more room light for note-taking and communication. Applications that use presentation graphics, photographs, or video are more likely to be shown in a darkened room, and therefore do not require as much light output. If the projector will serve multiple locations (either within a building or because of traveling), consider your most demanding setting.