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 class compare composition concept conservation conventional cost ecology economic economy effective efficiency electric electrical electricity energy equipment fluorescent graph green heat home idea illustration improvement lamp leaf led level light lightbulb new performance rate rating red right save solution tech 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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