Energy efficiency will go a long way to conserve our world's energy resources. When you use less energy at home, you reduce greenhouse gas emissions from power plants and help protect our environment from the risks of global climate change. In an effort to help you save energy which in turn will save money on your electricity bill, we are gifting you with a CFL bulb. So, go on, build a healthier environment while you save some precious money!  
  80W Normal Bulb 15W CFL Bulb
Power Consumption Per Hour 80W 15W
Power Consumption for 1000 Hours* 80000W 15000W
Electricity Consumed during 1000 Hours (1 Unit = 1000W) 80 Units 15 Units
Electricity Rate per Unit (Estimated) Rs 5 Rs 5
Cost of Electricity per 1000 Hours (100 Units) Rs 400 Rs 75
YOU SAVE A TOTAL OF Rs 400 - Rs 75 = Rs 325#
* Avg life of a normal bulb is 1000 Hours while avg life of a CFL bulb is 5000 Hours CFL = Compact Florescent Light
  Normal Bulb = Incandescent Light Bulb
# Estimated benefits on the basis of certain assumptions. Please refer to the table above to view a detailed calculation.