antique
background
big
bright
building
bulb
business
concept
creativity
design
economical
electric
electrical
electricity
energy
environment
equipment
glass
glow
hand
hanging
hold
home
huge
human
idea
imagination
incandescent
innovation
invention
lamp
large
led
light
lightbulb
man
nature
new
night
old
people
plan
power
saving
solution
spiral
success
symbol
technology
vintage
定額
huge electric light bulb in hand. incandescent lamp on the background of residential buildings. the concept of electric power supply to residential areas.の素材 [FY310164708513]
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