Ключевые слова: background, button, charging, closeup, concept, control, day, device, earth, eco, ecology, economical, electric, electrical, electricity, energy, environment, environmental, equipment, finger, global, globe, glow, hand, home, hour, house, lamp, light, lighting, lower, object, off, peace, person, planet, plug, power, safe, safety, save, savings, science, switch, technology, turn, universe, wall, white, world,