Color Brightness and White Brightness (Lumens)
Projectors come in a wide range of brightness which are measured in lumens. The brighter the projector the higher the lumen rating, and, all else being equal, the more it will likely cost.
Contrast ratio is the difference between light and dark on a screen, expressed by a number. If you take the brightest white on a screen and the darkest black and compare the luminosity, you get the contrast ratio. For example, a 1000:1 contrast ratio means that the brightest white is 1000x brighter than the darkest black.
Resolution is the number of dots or pixels used to display an image. Higher resolutions mean that more pixels are used to create the image, resulting in a crisper, cleaner image. High resolution is important for projecting detailed charts and graphs, text, and high-definition video. The resolution is indicated by a number combination such as 800 x 600. This indicates that there are 800 dots horizontally across the display by 600 lines of dots vertically, equaling 480,000 total dots that make up the image seen on the screen.
Installation Projector Advanced Features
- Stacked 3D Solutions
- Split Screen
- Edge Blending
- 360-Degree Projection
Product Support and Reliability
Reliability and the cost to operate your projector depend on one main factor: lamp maintenance. Look for a projector with a long lamp life; at least 3,000 hours is preferred, and about 5,000 hours is typical.