Sunday, September 10, 2017

Savings with LED light in thousands ; cost comparison LED Vs Conventional lights

Savings by using LED’s

You have often seen articles and lot of advertisements to use LED lights instead of conventional lights. Seeming the higher cost of LED’s we often reluctant to purchase LED lights. But there are huge savings by means of using LED lights.


Payback and Rupee savings per year with LED lights

Just by replacing LED tube light with conventional tube light savings are huge. Just go through the calculations as below:-

Conventional Tube Light
36 W tube rod lumens intensity = 2000- 2500 Lumens

Conventional Tube light Wattage = 36 W for Tube rod

Choke Wattage of Tube light= 36 W

So Total power consumption = 72 Wattage per hour

Now considering 10 Hrs of use per day then total power consumption per day will be= 72 X 10=720 Watt hour

Power consumption per month= 720 X 30 = 21600 = 21.60 KWH (Units)

Now for whole year power consumption= 21.60 X 12= 262.80 KWH (Units)

Power cost for per unit power consumption = 8 Rs (Avg. after considering all charges including tax and fixed charges cost)

Total Annual power consumption cost= 262.80 X 8= 2102.4 /-

LED Light
20 W LED light Lumens= 2000-2500 Lumens

LED light wattage  = 20 W

Power consumption per Hour= 20 Wattage per hour

Now considering 10 Hrs of use per day then total power consumption per day will be= 20 X 10=200 Watt hour

Power consumption per month= 200 X 30 = 6000 = 6 KWH (Units)

Now for whole year power consumption= 6 X 12= 72 KWH (Units)

Power cost for per unit power consumption = 8 Rs (Avg. after considering all charges including tax and fixed charges cost)

Total Annual power consumption cost= 72 X 8= 576 /-

Now cost of replacement conventional tube light with LED =300 /-

Total Annual Savings = 2102- 576- 300= 1226/-

Now you could see that merely replacing a single tube light will leads to savings in thousands now replace all tube lights in house and in industries will leads to huge savings. Now LED lights are available in wide range of wattage and they are one on one replacement of conventional lights. You can also see that payback period of replacement of conventional light with LED is only 1.5 Months.

You need not to replace whole tube light fitting with new LED light as now days LED tube rod are available with which conventional tube rod can be replaced with LED tube rod and choke and starter were taken out of circuit.

Also there is longer life of LED lights in comparison to conventional tube lights, Conventional lights have life of 10000 -15000 hrs of usage in-comparison to LED lights which have 25000-50000 hrs of usage. With LED lights there will be reduced maintenance cost as there will be no choke required in LED lights.

Also cost of LED lights is coming down with new innovations and bulk production. Also there is advantage associated with LED lights that manufacturer are offering warranty of 2-3 years.
So let’s start with savings now by replacing conventional lights with LED lights.