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technology
Flat
Ecology
touch screen, mobile phone, cellphone
Black
512x512
Ecology And Environment, illumination, technology
Battery, technology, electronics
technology, Windmill, mill
technology, Windmill, Windmills
LightBlue
invention, Ecology And Environment, Light bulb
YellowGreen
electronics, Socket, plug
technology, invention, Ecology And Environment
Ecologism, Ecologic, Ecological
electricity, Light bulb, Ecological
Batteries, charged, Ecologism
technology, ecology, Ecological
electricity, Idea, Light bulb