light output - log-log paper
- light output
- light pen
- light pipe
- light quantum
- light railway
- light railway car
- light relay
- light resistance
- light resistor
- light sand
- light sensitivity
- light shaft
- light signal
- light slide
- light soda ash
- light source
- light splitter
- light stability
- light sun-cured tobacco
- light tester
- light track
- light tractor
- light transmission
- light trap
- light type
- light valve
- light vector
- light vessel
- light volatile fuel
- light water-line
- light wave
- light year
- light-beam transmitter
- light-duty
- light-emitting diode
- light-fast colour
- light-gauge welding
- light-intensity
- light-intensity meter
- light-oil cracking
