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Red obstruction light on Rooftop(OB light).
Related tags:
- trafic light
- traffic signal
- warning light
- power
- electric power
- electricity
- safety signs
- electric energy
- warning symbol
- warning sign
- caution sign
- warning
- lamp
- power energy
- danger
- barrier
- lamp bulb
- traffic signs
- electric bulb
- caution
- bulb
- light bulb
- old lamp
- traffic safety
- danger sign
- energy
- fire safety
- signs and symbols
- electric pole
- lightning
- electric light
- fire sign
- aerial
- signal
- electrical equipment
