[Er.sandeep jain]

At present, most of the office buildings, Institutes and Industries are lighted by using 36W & 28W Fluorescent Tube lights. 

Consumption of these Lights is as below: 

1. 36W Fluorescent Tube light with Electronic Choke : 33 to 36W 
2. 36W FTL with Copper Choke :52W 
3. 28W T5 FTL electronic choke :28 to 30W 

All these can be replaced by energy efficient LED light as below: 
1. 36W FTL can be replaced by 16W to 18W LED tube 
2. 28W T5 FTL can be replaced by 12W LED Tube Light 

POWER SAVING 
Approximate power saving will be as below: 

Existing Power consumption 36W
Proposed  18W
Power Saving  50%
Utilization   12*30days

Calculation 
1Unit =  KWHr 
So for one tube light 
Unit per month  = 18 units 
LED tube light  = 9 Units 

Tariff after 200 Units 10 Rs

Cost per month Proposed Rs 90
Saving Per month Rs.  50%

Overall 50% saving in Light Bill