black led light bulb icon isolated transparent background economical illuminated lightbulb save energy lamp |
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| navigate by keyword : alternative background black bright bulb concept conservation creative creativity design diode eco ecology economical economy efficiency electric electrical electricity energy environment environmental equipment fluorescent graphic icon idea illuminated illumination illustration innovation inspiration invention isolated lamp led light lightbulb luminosity modern object power save saving sign symbol technology transparent vector |
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| Black LED light bulb icon isolated on transparent background. Economical LED illuminated lightbulb. Save energy lamp. Vector. |
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