Power Sensor saves up to 70% energy costs Power Sensor is a built-in 'people sensor' that transmits & receives harmless infrared signals to determine if the user is present & automatically reduces monitor brightness when the user steps away from the desk cutting energy costs by up to 70 percent & prolonging monitor life. Light Sensor for the perfect brightness with minimal power Light Sensor uses a smart sensor to adjust the picture brightness depending on the light conditions in the room for the perfect picture with minimal power usage. Crystal clear images with Quad HD 2560 x 1440 pixels These Philips screens deliver Crystal Clear Quad HD 2560 x 1440 or 2560 x 1080 pixel images. Utilising high-performance panels with high-density pixel count enabled by high-bandwidth sources like Displayport HDMI & Dual link DVI these new displays will make your images & graphics come alive. Whether you are a demanding professional requiring extremely detailed information for CAD-CAM solutions a user of 3D graphic applications or a financial wizard working on huge spreadsheets Philips displays will give you Crystal Clear images..