Bulb comparison - How efficient are the most energy saving bulbs ?

What light bulb types are the most energy efficient ?

Is there a big difference between classic bulb and energy saving bulbs ?
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14 Sep 2022 at 06:15 PM
The most common light bulbs or lamps are:

  • Incandescent light bulb (classic bulb) - is based on Tungsten or Wolfram filament. Inside is vacuum or inert gas. This bulb type is considered to be not very efficient, because it produces to much heat. Simply said, big part of used electricity is converted into heat.
  • Halogen lamp - is based on Tungsten or Wolfram filament. The lamp is filled with a mixture of inert gas and halogen. Halogen lamp is also not very efficient, because it produces too much heat, but not as much as Incandescent light bulb.
  • Compact fluorescent lamp (CFL) - is more energy efficient than Incandescent light bulb or Halogen lamp, because it produces much less heat. CFL also lasts longer.
  • LED bulb - is based on light emitting diodes. It is more energy efficient than CFL. LED lamp converts much more energy into light, in comparison to Incandescent light bulb, Halogen lamp or CFL. It also last longer then CFL.


Each of them is using a different technology. Beacuse there are many manufacturers, each bulb brand may have a different efficiency. So it is difficult to compare the exact values.

Bulb and lamp efficiency comparison:

  • Incandescent light bulb - to get approx. 1500 lumens brightness, you need a 100W bulb.
  • Halogen lamp - to get approx. 1500 lumens brightness, you need a 90W lamp.
  • Compact fluorescent lamp - to get approx. 1500 lumens brightness, you need a 23W lamp.
  • LED bulb - to get approx. 1500 lumens brightness, you need a 14W bulb.


As you can see, LED bulb is the most energy efficient, because it consumes less electricity.
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17 Sep 2022 at 10:54 AM
Ron
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