Two light bulbs 1 old style 1 energy saving with a tick and a cross indicating witch one is the best to use.

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Size: 5307px × 3542px
Photo credit: © Paul Taylor Photography / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: bulb, climate, cross, electricity, energy, global, green, light, planet, save, saving, tick, warming, wattage, wrong