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RAB FFLED18W FUTURE FLOOD 18W COOL LED 120V TO 277V WHITE

BRAND: RAB Lighting | MODEL: FFLED18W | CONDITION: NEW | SKU: 1429709
RAB FFLED18W FUTURE FLOOD 18W COOL LED 120V TO 277V WHITE

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$157.50
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Description

ffled18w

It falls within a specified solid angle or is emitted from a special region, and describes the quantity of light that passes through. The CGS unit of luminance is the stilb, which will be identical to one candela per 10 kcd/m2 or square centimetre.

The SI unit of luminous and illuminance emittance, being the luminous power per region, is quantified in Lux. It's used as a measure of the strength in photometry, as perceived by the human eye, of light that reaches or passes through a surface. It's similar to the metrical unit watts per square metre, but with all the electricity at each wavelength weighted according to a standardized model of human visual brightness understanding, the luminosity function. In English, "lux" can be used in both singular and plural.[24]

Several measurement techniques are created to control glare caused by indoor light design. The Unified Glare Rating (UGR), the Visual Comfort Probability, as well as the Sunlight Glare Index are a number of the very well known systems of measurement.