節電にまつわるアイコンセット（モノクロ）
Schlüsselwörter
brownout,
electricity,
bulb,
icon,
sweet,
eco,
saving,
vector,
lighting,
mark,
outlet,
plug,
switch,
power source,
power,
light,
bud,
energy,
ecology,
money,
air conditioner,
fan,
night time,
house,
residence,
heater,
stove,
chart,
temperature,
idea,
flair,
hand,
push,
extinguishing
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