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 bulb certificate chart classification compare composition concepts conservation cost ecology economic economy efficiency electric electrical electricity energy environment fluorescent generation graph green idea improvement invoice label lamp leaf led level light lightbulb performance power rate rating red regulation save saving spent technological technology usage utility various 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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