background
blue
bright
color
creative
creativity
electric
electricity
energy
enlightenment
equipment
filament
fluorescent
generation
girl
glass
glow
hand
house
idea
illuminated
imagination
incandescent
incandescent lamp
innovation
inspiration
intelligence
invention
isolated
kilowatt
lamp
light
light bulb
lighting
not economical
old
one
power
reflection
science
solution
spiral
symbol
technology
there is light
think
transparent
tungsten
voltage
watt