energy, power, electricity, electric power, bulb, lightbulb, ecology, economic,

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Keywords: bill, bright, bulb, bunch, compact, conservation, consumption, ecology, economic, economy, efficiency, efficient, electric, electricity, energy, environmental, equipment, fluorescent, heap, home, illumination, industry, lamp, light, lightbulb, lighting, luminary, modern, modernity, object, pile, pipe, power, save, saving, shiner, shiny, technology, tube, utility, wattage