英文關鍵字
blink
bulb
cloth
color
current
device
diod
ecology
economical
economy
efficient
electric
energyconserving
flash
flashlight
glass
illumination
indoor
inside
item
keychain
lamp
lay
led
light
little
metal
miniature
nano
nopeople
one
power
ring
round
saving
shape
single
small
toy
trinket