High-efficiency (HE) refers to appliances and systems designed to use less energy while maintaining performance. This term is commonly associated with washing machines, dryers, and light bulbs that meet specific energy-saving standards. HE products help reduce electricity consumption, which can lead to lower utility bills and a smaller environmental footprint. In the context of heating and cooling systems, HE technologies often include advanced features like variable-speed motors and smart thermostats. These innovations optimize energy use, ensuring that homes remain comfortable without wasting resources. Overall, HE products contribute to sustainability and energy conservation efforts.