Ключевые слова: active, appliance, automatic, button, circuit, comfort, connect, contrast, control, detail, ease, electrician, electricity, electromagnetic, electronics, energy, environmental, equipment, grey, hardware, home, human, idea, illumination, illustration, indoor, industrial, interior, light, line, metaphor, off, play, power, press, push, realistic, residential, room, save, set, stop, supply, switch, technology, touch, turn, utility, voltage, white,