Vector image of wind turbines and light bulbs increasing in size and number.
Schlüsselwörter
wind,
power,
turbine,
electricity,
technology,
size,
energy,
amount,
light bulb,
windmill,
growth,
exponential,
vector,
bigger,
wind power,
bulb,
light,
concept,
ecology,
green,
environment,
solar,
eco,
electric,
symbol,
renewable,
nature,
lamp,
alternative,
natural,
innovation,
plant,
environmental,
save,
sustainable,
future,
ecological,
global,
resource,
generator,
planet
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