single led orange traffic light powered solar panels exhibition close |
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| navigate by keyword : single signal led orange traffic light blinking transport solar cell power panel energy alternative environment renewable ecology sign electricity urban safety electric sky equipment transportation battery sustainability warning exhibition ecological industrial concept stop flash semaphore stoplight street hall control lamp indoor closeup circle wait yellow caution |
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| Single signal LED orange traffic light powered by solar panels installed above at transport exhibition, trade show - close up view. Warning, safety, attention, renewable energy, ecology concept |
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