environmental
abstract
background
beam
blue
bright
brightly
bulb
cold
copy space
dark
darkness
electric
electrical
electricity
emission
emitting
energy
equipment
fall
floodlight
glowing
highlight
ice
illuminated
illumination
lamp
light
modern
pour
projection
ray
resourceful
saving
search
searchlight
shape
shine
simplicity
spotlight
target
technology
torch
white