Various light bulbs
LED bulb
Home appliances, microwave oven line drawing, coloring
Microwave 2 Home appliances, color
LED bulb multicolor A
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)
light bulb
Electric light
Inspiration
light bulb
light bulb (lit)
2 utility poles
Cute microwave illustration/600W
Cute microwave illustration/500W
Light bulb (3 pieces)
Japanese outlet and plug
Bean ball
light bulb
light bulb
Light bulb (extinguished)
Light bulb (18 pieces)
light bulb
Bean bulb _ inspiration _ light bulb _ bean ball _ lighting
light bulb inspiration hand drawn illustration
Bean Ball 01
light bulb
Power saving mark green
light bulb
light bulb
microwave
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
light bulb
Power saving mark black
Bulb (ON)
light bulb icon white
breaker
Light bulb illustration/lighting
Mini lamp bulb icon
IN
Mechanical governor
Laptop PC screen light bulb mark
microwave red
Masking tape W
microwave
light bulb
Mechanical governor low speed (large)
Microwave black and white
Tako foot wiring Lots of cords Dangerous wiring
Mechanical governor high speed (large)
light bulb
Bulb (OFF)
Vibbit inspiration_Miniature light bulb on_icon
Outlet
It doesn't start _Miniature light bulb off_ icon
correct answer! Light bulb icon
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)
Sockets
ceiling light
Microwave heating time notation
microwave
Double Cat
ceiling light remote control
light bulb
Edison
Simple telephone poles, utility poles, and power lines
Power Meter Electricity & Smart Meter
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
Rollwatte
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