## Number of Floodlighting Units Solution

STEP 0: Pre-Calculation Summary
Formula Used
Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux)
N = (Alight*Ev)/(0.7*ΦB)
This formula uses 4 Variables
Variables Used
Number of Floodlighting Units - Number of Floodlighting Units where the light sources are concentrated into narrow light beams using specific reflectors is known as flood lighting.
Area to be Lighted - (Measured in Square Meter) - Area to be Lighted defined by their light distribution, with some consideration of potential application as well.
Illumination Intensity - (Measured in Lux) - Illumination intensity refers to the level or strength of light in a given area. It quantifies the amount of light reaching a surface and is typically measured in units such as lux or foot-candles.
Lumen Flux - (Measured in Lumen) - Lumen flux is often used as an objective measure of the useful light emitted by a light source.
STEP 1: Convert Input(s) to Base Unit
Area to be Lighted: 8.98 Square Meter --> 8.98 Square Meter No Conversion Required
Illumination Intensity: 1.02 Lux --> 1.02 Lux No Conversion Required
Lumen Flux: 7.651 Lumen --> 7.651 Lumen No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
N = (Alight*Ev)/(0.7*ΦB) --> (8.98*1.02)/(0.7*7.651)
Evaluating ... ...
N = 1.71025262804115
STEP 3: Convert Result to Output's Unit
1.71025262804115 --> No Conversion Required
1.71025262804115 1.710253 <-- Number of Floodlighting Units
(Calculation completed in 00.004 seconds)
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## Credits

Created by Aman Dhussawat
GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY (GTBIT), NEW DELHI
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Verified by Parminder Singh
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## <Methods of Lighting Calculators

Intensity of Light Transmitted
​ Go Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption Coefficient*Path Length)
Spectral Reflection Factor
​ Go Spectral Reflection Factor = Reflected Spectral Emission/Spectral Irradiation
Spectral Luminous Efficacy
​ Go Spectral Luminous Efficacy = Maximum Sensitivity*Photopic Efficiency Value
Luminance for Lambertian Surfaces
​ Go Luminance = Illumination Intensity/pi

Beer-Lambert Law
​ Go Intensity of Transmitted Light = Intensity of Light Entering the Material*exp(-Absorption per Concentration Coefficient*Concentration of Absorption Material*Path Length)
Utilization Factor of Electrical Energy
​ Go Utilization Factor = Lumen Reaching Working Plane/Lumen Emitting from Source
Specific Consumption
​ Go Specific Consumption = (2*Input Power)/Candle Power
Luminous Intensity
​ Go Luminous Intensity = Lumen/Solid Angle

## Number of Floodlighting Units Formula

Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux)
N = (Alight*Ev)/(0.7*ΦB)

## How many flood lights do I need?

That depends on the space you wish to illuminate. Small areas such as outdoor footpaths and doorways would need around 1,500–4,000 lm. Small yards, store forecourts, and driveways would need around 6,000–11,000 lm. Larger areas require 13,000–40,500 lm for roads and parking lots.

## How to Calculate Number of Floodlighting Units?

Number of Floodlighting Units calculator uses Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux) to calculate the Number of Floodlighting Units, The Number of Floodlighting Units formula is defined as the flooding of large surfaces with light through powerful projectors, where the light sources are concentrated into narrow light beams using specific reflectors is known as flood lighting. Number of Floodlighting Units is denoted by N symbol.

How to calculate Number of Floodlighting Units using this online calculator? To use this online calculator for Number of Floodlighting Units, enter Area to be Lighted (Alight), Illumination Intensity (Ev) & Lumen Flux B) and hit the calculate button. Here is how the Number of Floodlighting Units calculation can be explained with given input values -> 1.710476 = (8.98*1.02)/(0.7*7.651).

### FAQ

What is Number of Floodlighting Units?
The Number of Floodlighting Units formula is defined as the flooding of large surfaces with light through powerful projectors, where the light sources are concentrated into narrow light beams using specific reflectors is known as flood lighting and is represented as N = (Alight*Ev)/(0.7*ΦB) or Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux). Area to be Lighted defined by their light distribution, with some consideration of potential application as well, Illumination intensity refers to the level or strength of light in a given area. It quantifies the amount of light reaching a surface and is typically measured in units such as lux or foot-candles & Lumen flux is often used as an objective measure of the useful light emitted by a light source.
How to calculate Number of Floodlighting Units?
The Number of Floodlighting Units formula is defined as the flooding of large surfaces with light through powerful projectors, where the light sources are concentrated into narrow light beams using specific reflectors is known as flood lighting is calculated using Number of Floodlighting Units = (Area to be Lighted*Illumination Intensity)/(0.7*Lumen Flux). To calculate Number of Floodlighting Units, you need Area to be Lighted (Alight), Illumination Intensity (Ev) & Lumen Flux B). With our tool, you need to enter the respective value for Area to be Lighted, Illumination Intensity & Lumen Flux and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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