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Glass light bulb with burning filament upright with bright blue background
Keywords:
concepts
electricity
no people
efficiency
illuminated
fuel and power generation
blue background
power supply
single object
blue
glowing
filament
ideas
close-up
electric lamp
incandescent bulb
energy efficient
material
metal
lighting equipment
business finance and industry
innovation
bright
inspiration
technology
shiny
transparent
light bulb
glass
tungsten
light bulb metal
learning efficiency
light bulb off
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