In my building there are 18 rows and each row has 21 (6+8+1+6) fluorescence tubes in doublet (i.e., 42 in numbers) for lighting. All the tubes are covered with screen and therefore total 756 tubes are used everyday for lighting. The cover reduce the intensity of light, therefore, if we remove the cover it will increase the intensity of light and then reduce the number of tubes to be used. By this way, we can convert ...more »
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