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Comparison Chart

Comparison Chart
 LED Lights vs. Incandescent Light Bulbs vs. CFLs

Energy Efficiency
& Energy Costs



Light Emitting Diodes (LEDs)



Incandescent
Light Bulbs



Compact Fluorescents (CFLs)

Life Span (average)

 50,000 hours

 1,200 hours

8,000 hours

 Watts of electricity used
(equivalent to 60 watt bulb). 

LEDs use less power (watts) per unit of light generated (lumens).  LEDs help reduce greenhouse gas emissions from power plants and lower electric bills

6 - 8 watts

60 watts

13-15 watts

Kilo-watts of Electricity used   
(30 Incandescent Bulbs per year equivalent) 

329 KWh/yr.

3285 KWh/yr.

767 KWh/yr.

Annual Operating Cost   
(30 Incandescent Bulbs per year equivalent) 

$32.85/year

$328.59/year

$76.65/year

 

Environmental 
Impact


Light Emitting Diodes (LEDs)



Incandescent
Light Bulbs



Compact Fluorescents (CFLs)

Contains the TOXIC Mercury 

No

No

Yes - Mercury is very toxic to your health and the environment

RoHS Compliant

Yes

Yes

No - contains 1mg-5mg of Mercury and is a major risk to the environment

Carbon Dioxide Emissions  
(30 bulbs per year)
Lower energy consumption decreases: CO2 emissions, sulfur oxide, and high-level nuclear waste. 

451 pounds/year

4500 pounds/year

1051 pounds/year


We provides this calculations to show you the financial and environmental benefit of converting your current lighting over to LED Lighting.

This calculator has some a basic input parameters that are preset with some values that you can adjust based on your application. Here is a definition of the input parameters.

a. Current Lighting Watts per Tube (W): your current wattage consumed per Tube.
b. LED Lighting Watts per bulb: the wattage of LED Bulb will be replacing your current bulbs.
c. Total Number of Fixtures or Bulbs: the total count of bulbs you are looking to replace.
d. Daily Operating Hours ; the average number of hours your current lighting is used a day.
e. Working Days Per Month: the total number of days you use your current lighting per month.
f. kWh Cost: the kWh cost you are charged on your utility statement.
g. Maintenance & Ballast Monthly (perBulb): Your average maintenace cost per bulb per month.
h. HVAC Load Monthly Cost Factor (%): Your HVAC Monthly Load Cost Factor or the amount
i. you spend on HVAC as a percentage of your total electrical usage per month.
j. Cost per single LED Bulb: The cost of a single LED bulb you are looking to replace your current lighting.

For Example if you use a Flourocent Tube Light of 50 Watts and replaces it  with LED Tube Light of 20 Watts then your Financial and Environment benefits are as under;

Current Lighting Watts per bulb (W) 50
LED Lighting Watts per bulb (W) 20
Total Number of Fixtures or Bulbs   100
Daily Operating Hours (hrs) 10
Working Days Per Month        25
kWh Cost          10
Maintenance & Ballast Monthly (per Bulb)    1.50
HVAC Load Monthly Cost Factor (%)     15
Cost per single LED Bulb      2000
Cost for Installation (per bulb)     ----
Rebates (Utilities or Government) (per bulb) ----
EPAct Rebates  (per bulb)    ----

Financial Benefits

 

Current Lighting

LED Lighting

Watts per bulb (W)

50

20

Number of Fixtures or Bulbs

100

100

Daily Operating Hours (hrs)

10

10

Watt-hours per day (Wh)

50000

20000

Kilo-watt-hours per day (kWh)

50

20

Working Days Per Month

25

25

Total kWh per Month (kWh)

1250

500

kWh Cost

10

10

Monthly kWh Cost

12500.00

5000.00

Maintenance & Ballast Monthly (per Bulb)

1.5

0.00

Maintenance & Ballast Monthly Total

150.00

0.00

HVAC Load Monthly Cost Factor (%)

15

0%

HVAC Monthly Cost from Lighting

1875.00

0.00

Cost per Month w/ HVAC and Maintenance

14525.00

5000.00

Total annual cost to operate

174300.00

60000.00


Cost per single LED Tube Light.

2000

Cost of Installation per single LED Bulb

0

Rebates per single LED Bulb

0

EPAct Rebates per single LED Bulb

0

Total Savings Monthly with LED

9525.00

Total Savings Annually with LED

114300.00

Total Savings over 10 Years

1143000.00

Total Cost to retrofit with LED

200000.00

Payback Period in Months

21.00


Environmental Benefits

 

Current Lighting

LED Lighting

Annual System Electricity Usage (kWh)

15000.00

6000.00

kWh Cost

10.00

10.00

Annual System Cost

150000.00

60000.00

Energy Savings from kWh Reduction

 

90000.00

CO2 Emissions Reduction (lbs)*

 

11970.00

Car Removal Equivalent (cars)**

 

1.05

Tree Planting Equivalent (acres of trees)***

 

2.30


*Calculation based on USEPA eGRID2007 Version 1.1 estimated national avg of 1.33 lbs CO2/kWh.
**Calculation based on USEPA Emission Facts, 2000:
***Calculation based on UFA estimate of 2.6 tons of CO2 stored per acre of trees.