If 100 m2 area is to be illuminated at 600 lumens/m2, find the number of lamps required. Depreciation factor = 0.5, Waste light factor = 0.2, Utilization factor = 0.25, each lamp is rated 100 W and has an efficiency of 0.6.
1
2000
2
400
3
200
4
1000
If 100 m2 area is to be illuminated at 600 lumens/m2, find the number of lamps required. Depreciation factor = 0.5, Waste light factor = 0.2, Utilization factor = 0.25, each lamp is rated 100 W and has an efficiency of 0.6.