Ключевые слова: abstract, alternative, appliance, begin, bright, button, circle, closeup, concept, connect, conservation, control, detail, device, earth, eco, ecological, ecology, electric, electrical, electronic, energy, environment, equipment, friendly, future, global, glow, green, idea, imagination, imagine, industrial, lamp, leaf, led, light, lightbulb, lightning, machine, natural, nature, off, position, power, red, science, shutdown, switch, turn,