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Energy efficiency concept with energy rating chart and LED lamp
Keywords:
performance
concepts
electricity
no people
plant
efficiency
savings
fuel and power generation
power supply
symbol
energy efficient lightbulb
ecosystem
economy
chart
certificate
environmental conservation
finance and economy
industry
alternative energy
low
social issues
order
energy efficient
equipment
environment
technology
level
rating
leaf
green color
ideas
close-up
growth
nature
light bulb
battery
isolated
performance evaluation
low rating
performance ratings
energy performance certificate
energy certificate
energy efficiency
efficiency energy
energy efficient
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