blue light [(photochemical) retinal] hazard
light-light transfer efficiency
lightweight Light-Expansion Concrete
White Light Light-Emitting Diode
hazard prevention and hazard reduction
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