Formula for calculation of Fixture and Lumen of light necessary for Building

Required formula: 1.	Total Wattage of Fixtures:	No of Lamps X each Lamp’s Watt.
2.	Lumen per fixtures:	Lumen Efficiency(Lumen per Watt) x each Fixture’s Watt
		2000
3.	Required No of Fixtures :	Required Lux x Room Area / MFxUFx Lumen per Fixture
4.	Maximum spacing between Fixtures:	Space height Ratio x height
5.	Number of Row required :	width of Room / Max. Spacing
	Number of Fixture Required in each Row :	Total Fixtures / No of Row
7	Axial Spacing between Fixtures :	Length of Room / Number of Fixture in each Row
8	Transverse Spacing between Fixtures:	width of Room / Number of Fixture’s row