energy efficiency concept
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
energy efficiency concept |
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| navigate by keyword : bar better bulb certificate chart composition concepts conservation conventional cost ecology economic economical economy efficiency efficient electric electricity energy equipment europe fluorescent generation graph green improvement indicator invoice label lamp led level light lightbulb new performance power rate rating red right save saving tech technology usage utility watt yellow |
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| Energy efficiency concept with energy rating chart and LED lamp |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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