The Datacolor Spyder3TV Color Calibration System is an easy-to-use calibration system for your home theater display as well as any other TV in your home, and is intended for use by home theater enthusiasts, or system installers. It provides the correct adjustments to brightness, contrast, color, tint and color temperature for your display so you'll see your favorite movies exactly as they were intended. Furthermore, a properly calibrated display can save energy and extend the life of your home theatre display by ensuring that brightness and contrast settings are optimized (an overly bright and contrasty display uses more power and can lead to a shorter display life -especially for plasma displays)