candela
Luminous intensity measure
Candela is the unit of luminous intensity in the International System of Units (SI), measuring the brightness of a light source in a particular direction.
One candela is roughly the light output of a common candle, which is the origin of the term.
The plural is candelas or candelae: The bulb produces 120 candelas.
Light output measure
- luxSI illuminance unit
- nitParasite egg or quibble
- SIUniversal measurement framework
- luminanceLight per unit area
intensity · watt · joule · flux · calibration · metrology · ampere · mole
Emitting or reflecting light
- photometerDevice measuring illumination levels
- luminosityIntrinsic brightness of source
- radianceGlowing luminous quality
- luminanceLight per unit area
optics · photonics · steradian · illuminance · photon · spectral · irradiance
Steady, soft light
- radianceGlowing luminous quality
- gleamFaint reflected light
- shineEmit or reflect light
- brightnessDegree of light emitted
luminescence · fluorescence · phosphorescence · shimmer · twinkle · sparkle · flicker · glisten
Electric light fixture
- lanternEnclosed portable light
- torchHandheld burning light source
- sconceMounted light fixture
- beaconGuiding light source
flare · spotlight · floodlight · headlamp · streetlight · lighthouse · neon · pendant
lumen
Light output measure
luminance · intensity · watt · joule · flux · calibration · metrology · ampere · mole · meter
luminous
Emitting or reflecting light
- photometerDevice measuring illumination levels
- luminosityIntrinsic brightness of source
- radianceGlowing luminous quality
luminance · optics · photonics · steradian · illuminance · photon · spectral · irradiance
glow
Steady, soft light
brightness · luminescence · fluorescence · phosphorescence · shimmer · twinkle · sparkle · flicker · glisten · brilliance
lamp
Electric light fixture
beacon · flare · spotlight · floodlight · headlamp · streetlight · lighthouse · neon · pendant · lamplight
candelalumen
Light output measure
lux · illuminance · watt
incandescent, candelabra, incandescence, candelas, incandesces