automatic ceiling light projector
light-light transfer efficiency
lightweight Light-Expansion Concrete
White Light Light-Emitting Diode
anti-visible light and infrared light
breakdown light {NUC light}
digital light processing DLP light source
high light efficiency light source
light draft [= light draught]
light output characteristic and the light distribution
Light-emitting diode curing light
light-emitting diode LED light source
Light-Exposure and Light-and-Water-Exposure Apparatus
light-load [= light loading]
red light and green light
riding light [= anchor light]
slow light group-velocity and superluminal light