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Information on LED Lighting Products & Energy Saving Calculator/Comparison Chart

 

LED

FLUORESCENT (CFL)

INCANDESCENT

Life Span (How long will the light bulb last?)

60,000 hours

5,000 hours

1,000 hours

Watts Per Bulb (Wattage Equiv. at 60w)

6

14

60

Cost Per Bulb in Rupees

1500

200

25

KWh of electricity used over 60k hours

360

840

3600

Electricity Cost ( @ Rs 4 per KWh )

1440

3360

14400

Bulbs needed for 60k hours of usage

1

12

50

Equivalent 60k hour Bulb expense

1500

2400

1500

Total cost for 60k hours

2940

5760

15900

 Calculate Your Energy Savings per 60,000 hours and assume #30 bulbs per establishment

Total cost for 30 bulbs

45000

72000

45000

Total cost for using 30 bulbs for 60K hours

88200

172800

477000

Savings by Switching from Incandescent

388800

304200

0

Savings by Switching from CFL

84600

0

 

 

Information on LED Lighting Products

LED

FLUORESCENT (CFL)

INCANDESCENT

Ecology and Environment

Very Friendly/Min. Issue

Damaging-Mercury/Argon

Damaging

Heat Issue

Least

Ballast Heat

Largest

Light Control

Most Control

Least Control

Variable Control

Maintenance

Zero

Ballast Issue

Replacement

Weather Temperature Changes

Not Sensitive

Sensitive

Some Sensitive

Effective Lumens

Equivalent

Equivalent

Equivalent

 Light Output Equivalent

The following chart shows the wattage required to obtain the light output equivalent to incandescent light bulbs.

 Incandescent Light Bulbs

Fluorescent (CFL)

LED

Minimum Light Output

Watts

Watts

Watts

Lumens

40

9-13w

4-5w

450

60

13-15

6-8w

800

75

18-25

9-13w

1100

100

23-30

16-20

1600

150

30-55

25-28

2600

 

Notes:

a. Cost of electricity will vary. The figures used above are for comparison only, and are not exact.

b. The cost per bulb for LEDs may vary. We used the figure of Rs.1500 (for a 6 watt LED) as an average among lighting retailers.

c. Estimates of bulb lifespan are projected, since it would take about 6 years of continuous lighting to test. Some manufacturers claim the new LED bulbs will last up to 25 years under normal household use, but this is not proven.

d. Bulb breakage and bulb replacement costs have not been factored into this comparison chart. Incandescent bulbs and CFL bulbs are more easily broken than LEDs, which increases their cost of use.

e. Most LEDs come with a minimum 2-year guarantee. Any defective LED bulb will usually fail within this time.

 


 


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Last modified: 01/02/10.