background
blue
bright
brightly
bulb
bulbs
cold
crystal
diode
electric
electrical
electricity
electronic
emission
emissions
emitting
energy
environmental
equipment
glass
illuminated
illumination
industrial
industry
lamp
lampe
lamps
led
leds
light
lightemitting
lighting
lightings
lights
lit
modern
new
orange
plastic
resourceful
save
saving
science
simplicity
technology
three
various
white