LED bulb
Home appliances, microwave oven line drawing, coloring
Microwave 2 Home appliances, color
LED bulb multicolor A
Various light bulbs
LED bulb multicolor B
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Scientists of the World [Technology/Medicine] (Color)
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Scientists of the World [Technology/Medicine] (Black and White)
fluorescent lamp
fluorescent lamp
fluorescent lamp
Lâmpada
Lâmpada
電気料金明細
light bulb (lit)
2 utility poles
Light bulb (3 pieces)
Japanese outlet and plug
bola de energia feijão
lâmpada elétrica
Lâmpada
Light bulb (extinguished)
Light bulb (18 pieces)
light bulb
Bean bulb _ inspiration _ light bulb _ bean ball _ lighting
light bulb inspiration hand drawn illustration
lâmpada elétrica
Power saving mark green
リアルなプラスチックのブロック文字W
light bulb
lâmpada elétrica
microwave
light bulb icon white
Cooperate in saving electricity
light bulb
Outlet of octopus wiring that ignited due to overcurrent
LED light bulb
Tako foot wiring Lots of cords Dangerous wiring
Outlet of octopus wiring that ignited due to overcurrent
ｗ
light bulb
Power saving mark black
IN
Bulb (ON)
リアルな木製ブロック文字 w
breaker
Light bulb illustration/lighting
Bulb (OFF)
Feijão ícone da lâmpada
街灯 アイアン
Mechanical governor
Laptop PC screen light bulb mark
microwave red
Masking tape W
microwave
lâmpada elétrica
Mechanical governor low speed (large)
Microwave black and white
Tako foot wiring Lots of cords Dangerous wiring
Mechanical governor high speed (large)
light bulb
Inspiration
Vibbit inspiration_Miniature light bulb on_icon
Outlet
It doesn't start _Miniature light bulb off_ icon
correct answer! Light bulb icon
Light bulb icon yellow
Electrical Energy
PC power supply (plug-in type)
Point light bulb that can be used for one point
J. Watt (color)
J. Watt (black and white)
Mechanical governor with explanation (large)
Cute microwave illustration/600W
ceiling light
Microwave heating time notation
Cute microwave illustration/500W
microwave
光る電球
ceiling light remote control
Double Cat
Sockets
light bulb
Edison
Simple telephone poles, utility poles, and power lines
Sanitary material set
Power Meter Electricity & Smart Meter
Power meter: wattmeter
Electricity meters and gas meters
Electric meter
Diagram of a solar power generation system
Electric meter
Electric meter
Electric meter
Electric meter
Electric meter
power meter
Illustration of an electricity meter
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