energy saving lamp incandescent lamps |
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navigate by keyword : alternative background bulb business concept conservation creative direction ecology economy efficiency electric electrical electricity energy energysaving environment equipment evolution flat global green idea incandescent innovation invention lamp light lightbulb mixed modern object power save saving shape supply technology three watt white yellow |
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Energy-saving Lamp vs. incandescent lamps. The concept of energy saving . On a yellow background.One energy-saving bulb corresponds to three incandescent bulbs.Light bulbs mixed. |
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