Ключевые слова: background, blue, bright, bulb, business, concept, conservation, design, diode, economical, economy, electric, electrical, electricity, energy, environment, environmental, equipment, glass, golb, grass, green, hand, holding, idea, innovation, isolated, lamp, led, light, lighting, modern, nature, new, object, person, power, saving, small, solution, symbol, technology, toy, tree, tungsten, white, world,