background
battery
beam
black
blackout
bright
bulb
button
dark
darkness
defuse
directional
discovery
electric
emergency
energy
equipment
flash
flashlight
glowing
illuminate
illuminated
illumination
lamp
lantern
led
light
metal
night
object
power
projection
projector
ray
reflection
search
security
shine
shiny
small
spot
spotlight
switch
technology
tool
tools
torch
torchlight
tourism
white