led light bulb euro coins and bills concept for electricity bill savings from power supply change |
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| navigate by keyword : bill bright bulb cash change charge coin concept creativity currency debt economical economy efficiency electric electrical electricity energy euro finance fluorescent glowing idea illumination incandescent innovation lamp led light lightbulb money payment people power price saving supplier supply technology watts |
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| LED light bulb on euro coins and euro bills. Concept for electricity bill or savings from power supply change. |
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