Energy efficiency chart icon isolated on transparent background. Home energy efficiency vector label scale sign, bulb energetic rating bar symbol. Energy consumption sign . Stock colorful vector flat. premium vector by [email protected]

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bar vector background colorful on high isolated transparent sign label environment energy consumption Efficiency electric power arrow symbol concept icon building house office ecology home flat scale performance bulb conservation stock certificate level improvement low graph chart cost appliance economic class diagram energetic save requirement rating classification effective heating energy efficient lightbulb

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