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 Appliance 
 Wattage Rating 
Running time for 1 unit of consumption(approx)
Incandescent Bulbs   
25W
40 hrs / Unit
do
40W
25 hrs / Unit
do
60W
16 hrs 40 mins / Unit
do
100W
10 hrs / Unit
Fluorescent Tubelight 24"
20W
50 hrs / Unit
Fluorescent Tubelight 48"   
40W
25 hrs / Unit
Night Lamp    
15W
66 hrs 40 mins / Unit
Mosquito Repellent  
5W
200 hrs / Unit
Fans   
60W
16 hrs 40 mins / Unit
Air Coolers 
170W
5 hrs 50 mins / Unit
Air Conditioners(1-1.5 Ton)      
1500-2500W
40 to 24 mins / Unit
Refrigerators(165 litres)  
225W
4 hrs 30 mins / Unit
Mixer/Blender/Juicer
450W
2 hrs 15 mins / Unit
Toaster 
800W
1 hr 15 mins / Unit
Hot Plate  
1000-1500W
1 hr to 40 mins / Unit
Oven    
1000W
1 hr / Unit
Electric Kettle 
1000-2000W
1 hr to 30 mins / Unit
Iron 
450-700W
2 hrs 15 mins to 1 hr 25 mins / Unit
Water Heater


1 1/2 - 2 litre capacity(Instant Geysers)
3000W
20 mins/Unit
10-20 litre(Storage Type) 
2000W
30 mins/Unit
Immersion Rod
1000W
1 hr / Unit
Vaccum Cleaner
700-750W
1 hr 25 mins to 1 hr 20 mins / Unit
Washing Machine
325W
3 hrs / Unit
Water Pump  
750W
1 hr 20 mins / Unit
TV
60-120W
16 to 8 hrs / Unit
Radio
15W
66 hrs 40 mins / Unit
Video
40W
25 hrs / Unit
Tape Recorder
20W
50 hrs / Unit
Stero System
50W
20 hrs / Unit


Tips to Consumers:-

At-a-glance reckoner of energy consumption

For your reference, an at-a-glance reckoner of energy consumption levels of standard lighting and electrical applicances







































Note: The wattage ratings indicated are the average ratings of the various brands of appliances/equipment available in the market today. The figures are only indicative.

How to Calculate:
1000 W burned for 1 hour = 1 unit of electricity consumed = 1 Kilowatt hour(KWh). Thus, the rule is to multiply watt rating by the number of hours used and dividing by 1000 to get kilowatt hours(1 KWh=1 unit of electricity). 



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