efficiency rating

Efficiency rating measures how well a device, system, or process converts input resources into useful output. It is expressed as a percentage, with higher ratings indicating more effective use of energy, time, or materials. For example, an appliance with a high efficiency rating uses less power to perform the same task compared to a less efficient one. This rating helps consumers and businesses assess performance, make cost-effective choices, and understand environmental impact by highlighting how efficiently resources are being utilized.