Here is a comparison chart of the three types of bulbs - incandescent (traditional bulb), CFL (compact fluorescent lamp) and LED (light emitting diode) bulb. The figures shown in the table are based on the fact that a particular bulb is used for 7 hours in a day.
The picture below shows how a particular light bulb emits light and heat. As you can see, an LED bulb is a clear winner as it emits minimum heat and produces more light as compared to CFLs and traditional bulbs.
Courtesy: Bijli Bachao
Buy 12W LED Bulbs (Set of 4) @ Rs 445 Buy 15W LED Bulb @ Rs 299
Buy LED Emergency Light (Set of 2) @ Rs 525
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