Bengali Dutch

The Parasol Learning Corner


Articles

Animations

Videos

 

 

householdUnderstanding your household needs


If you want to reduce your electric bill and protect the environment, you must educate yourself on the basics of efficiency. Join us for a look into the basics of efficiency...

Typical Applicance Energy Usage


Appliance
Typical Wattage

Lights

 

7w LED bulb (bright as 60w bulb)

7

18w CFL bulb (bright as 60w bulb)

18

60w incandescent bulb

60

100w incandescent bulb

100

Fans

 

42” ceiling fan (low)

24

52” ceiling fan (high)

90

12” rechargeable AC/DC fan

50

Computers

 

Laptop Computer

20-50

Desktop Computer

80-150

Desktop printer

100

Other Appliances

 

Mobile phone charging

25

Toaster

800-1500

Refrigerator (20 c. ft)

540

Refrigerator (16 c. ft)

475

Iron

1000

TV (25" color)

150

TV (19" color)

70

Air Conditioner (room)

~900


Appliance power consumption varies depending on the model and company, the consumption can vary greatly, for example with computers and refrigerators.   16-cubic feet refrigerators can vary in power consumption from 475 watt down to 112 watt!  A great reason to shop for efficient appliances.  Keep in mind that most all appliances have a label with the wattage on it, if you take the time to look for it.  If the number of watts is not listed, simply multiply the number of amps by the number of volts (220 in Bangladesh) and you get the number of watts.  Remember, the number of watts written on the label is the maximum amount the appliance will use, when it’s running at full power.

How important are efficient bulbs?

The old incadescent bulb is basically a small heater which also gives off a little bit of light.  Although CFL (Compact Flourescent) bulbs are more expensive, they are cheaper in the long run because they both last much longer (1,000 hours to 8,000 hours) and consume much less energy (roughly three times less).  The newer LED bulbs consume even less (half of CFLs), but they are more directional lights and often less bright.  Brightness or light intensity is measured in lumens – a typical 60 watt incandescent bulb puts out 800 lumens.


Appliance
Cost
(Taka)
Watts
(Consumption)
Lifespan
(Hours)
Lumens
(Brightness)
40w incandescent bulb

60

40

1500

480

11w CFL bulb

27

11

8,000

600

5w LED bulb

2,100

5

30,000

600

         

60w incandescent bulb

80

60

1000

820

13w CFL bulb

300

13

8,000

800

7w LED bulb

2,800

7

30,000

800

         

100w incandescent bulb

 

100

750

1,650

23w CFL bulb

 

23

8,000

1,600


A simple calculation from the above table will show that for the same wattage as one 800-lumen incandescent bulb, you could have eight LED bulbs running simultaneously!

 

 

 

web design: Bengal Creative Media, Ltd.