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