LED, Compact Fluorescent, Halogen: What Is the Best Choice of Bulb Energy?

Traditional (or incandescent) bulbs are likely to disappear, 2012 at the Canada, who decided to follow the lead to Australia, Europe and, of course, the United States.

These energy efficient bulbs had a lifespan limited between 1,000 and 2,000 hours and will therefore be replaced by tell bulbs ‘energy ‘.

Choices currently available on the market, include the fluo-compact, these small bent neon which it was us to shots of savings a few years ago.

What is silent, however, is the fact that they contain mercury, a really toxic heavy metal for environmental (and health). Exit, the fluo-compact (for me, anyway). Anyway, I never liked their bluish artificial and cold.

The halogen, they also provide very good lighting and have a better life, but consume a lot of energy and emit a lot of heat.

In addition, this type of bulb often has a special nerve that requires a socket (plug) different from ‘traditional’ bulbs, which is impractical and could become quite expensive, if your current sockets are not suitable (think here lamps embedded in the ceiling).

So what to choose?
This is so that another type of bulbs to increasingly see the market: led bulbs (or “light emitting diodes” – it’s fashionable in TVs too, for some time, but it is a whole other subject).

Based on Healthinclude.com, LED bulbs have a life expectancy far superior to other types of bulbs: we’re talking about 25 000 to 50 000 hours, 17 and 34, being lit 4 hours a day, 7 days a week.

Note: The led used here for comparative bulb is 60W of Philips AmbientLED model, but other brands (Sylvania, among others) are also available on the market.

The Cost of Consumption

Take as an example a typical 60 watt bulb and compare it to other types of bulbs…

Energy consumption:

  • Traditional bulb = 60 watts
  • Fluo-compact bulb = from 7 to 8 watts
  • LED bulb = 12.5 watts

An led bulb consumes slightly more energy than one fluo-compact, but much less than an incandescent light bulb.

If you then consider the lifecycle of each of the bulbs and the energy consumed during the life expectancy average of an led bulb for 17 years, to an average fare of $ 0.07 per kilowatt-hour (or kWh), we arrive at the following observation:

  • the incandescent light bulb will be replaced every year on average, at an approximate cost of $ 1.49 unity. In total it will consume about 1 737,4 kWh, or $ 121.62. Total: $ 146.95
  • the compact fluorescent bulb will be replaced approximately every 4 or 5 years, the unit to be about 4 times in 17 years at an average cost of $ 6.00. It will consume in total approximately 173,74 kWh, or $ 12.16. Total: $ 36.16
  • on the other hand, the led bulb will consume a total of 310.25 kWh, or $ 21.72. Its purchase price is currently around $ 50.00. Total: $ 71.72

The led bulb allows a good saving energy and money. A little less economic than the fluo-compact, but the economy remains substantial (more than 50%!) when compared to the incandescent light bulb.

Important point to make: in my tests, the bulb 40W led gave a light equivalent to a conventional incandescent bulb of 60W, makes that could reduce the cost of consumption of about 28% in the calculation above ($15.64 versus $ 21,72). Moreover, the cost of the bulb itself is thereby reduced, since an led 40W bulb costs less than a light bulb 60W led!

In comparison, a 60W led bulb would thus, always according to tested models, 80W lighting, or even of 100W, on the side of traditional bulbs.

In short, the led bulb seems an ideal candidate to replace all the bulbs in the House, but there are still two problems to solve:

1 – Lighting obtained is often not the same ” coloring ” than that produced by an incandescent light bulb. However, it remains better (IMHO) than that obtained with a compact fluorescent, which produces a hard, cold light.

You can see from the picture below that the model I tested produced a slightly pinkish light (right), which accentuated the color of the wall of my living room.

2 – Led bulbs are still quite expensive (is $ 24.98 the unit, in the case of a 40W bulb). Of course, their price should drop, like any new technology, and increase the saving energy (and money) to the level of the fluo-compact, if not more, while being more environmentally friendly.

In the meantime, manufacturers will perhaps also found a solution to the problem of coloring and managed to produce light that approximates the color white of that produced by incandescent light bulbs, making them completely obsolete.

Note: For more details on the operation of led bulbs, visit the resources natural Canada.

Gallery

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