A variable-speed air conditioner is a type of cooling system that can adjust its compressor speed based on the temperature needs of a space. Unlike traditional air conditioners that operate at a fixed speed, these systems can run at lower speeds for longer periods, providing more consistent cooling and improved energy efficiency. This technology allows for better humidity control and quieter operation, as the unit doesn't constantly turn on and off. Variable-speed air conditioners are often more energy-efficient than standard models, which can lead to lower utility bills and a reduced environmental impact over time.