black
bright
bulb
compare
concept
conservation
copy space
creativity
crisis
design
different
dim
economical
efficiency
electric
electrical equipment
energy
energy saving
equipment
fluorescent
glass
icon
idea
illuminate
imagination
innovation
inspiration
intelligence
isolated
lack
lamp
led
light
light bulb
lightbulb
lighting equipment
lightning
minimal
modern
object
power
power supply
savings
scarcity
shiny
simple
softness
success
symbol
technology
定額
Two light bulbs on a black background, one of which glows. Luminous and non-luminous bulbs. Turning on and off the light in the form of two bulbs. energy saving and electricity crisisの素材 [FY310194080422]
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