No Incandescent Light Bulb Sign. An Image Of A Sign Banning The Use Of Incandescent Light Bulbs. Right Now, Many Countries Still Allow The Use Of Incandescent Light Bulbs, Although Many States Have Plans Of Banning Such Use Due To The Higher Energy Usage Of Incandescent Light Bulbs In Comparison To More Energy Efficient Alternatives, Such As Compact Fluorescent Lamps And Led Lamps.

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allow allowed ban barred bulb cap caution circle concept contact electrical environment environmental filament forbid forbidden forbode glass incandescent light permit permitted red sign sleeve stem stopped support symbol tungsten use voltage warning watt wire