NVIDIA SmartDimmer is part of the NVIDIA PowerMizer Mobile Technology package. SmartDimmer can intelligently vary the backlight brightness of your notebook computer screen to help maximize battery life.
NVIDIA PowerMizer Mobile Technology is an intelligent power management solution that can help extend the battery life of your notebook computer while ensuring that the full power of your NVIDIA GPU is available whenever needed. Along with the SmartDimmer Feature, PowerMizer technology uses adaptive GPU clocking, dedicated HD video processing that requires less CPU use, fine scale voltage regulation within the GPU, and Active State Link Management to ensure ultra efficient use of the PCI-E link, as well as other creative ways of ensuring minimum power consumption.
PowerMizer technology is built into your NVIDIA GPU and driver, and requires no additional software to function.
For more information on PowerMizer technology, please click here: http://www.nvidia.com/object/feature_powermizer.html
Note: PowerMizer technology is NOT available on all laptops. Please check with your notebook manufacturer to see if your model supports PowerMizer.