Base SI
Luminous Intensity
Perceived power of light per solid angle; an SI base quantity.
SI unit
candela (cd)
Dimension:
Other units
- candela (cd)
Order of magnitude
How values of luminous intensity span the physical world (in cd, log scale).
Candle flame
100 cd
Car headlight
104 cd
Lighthouse
107 cd
Lower limit10-3 cdUpper limit109 cd