英文關鍵字
adult
alternative
bulb
cfl
change
close
closeup
compact
conserve
daylight
eco
ecology
economical
efficient
electric
energy
environmental
exterior
fixture
fluorescent
friendly
hand
home
illumination
improvement
incandescent
install
lamp
light
lightbulb
male
man
new
old
out
outdoor
outside
person
power
putting
replace
save
screwing
spiral
switching
technology
wall
white