bulb
compact
concept
conceptual
consumption
creative
current
earth
eco
ecologic
ecology
economic
efficiency
efficient
electric
electricity
energy
environment
expense
fluorescent
friendly
global
glow
green
idea
illumination
incandescent
innovation
lamp
light
long
luminance
option
planet
pollution
power
reduce
renewable
replacement
resource
save
smart
solution
substitute
warming
wattage