Can You Really Save Money with LED Ceiling Lights?

As recently I visited a friend who had moved to in a new apartment, I immediately noticed that he had installed a . “Great,” I thought to myself “if I would have to buy new lamps, I would pick up also LEDs.” But that is actually useful? Pay off LED lights on the wall and ceiling and if so when? How long must a LED light on the ceiling light until it is really financially profitable and is not only a technical gimmick?

Before throwing any numbers in the space, mysteryaround will clarify the cost factors first , which can lead to the savings with a LED bulb in residential premises:

  • Purchase Price
    In my scenario, I presume the situation that must be purchased no matter how a lamp.It is which is not necessarily a still functioning traditional ceiling light (say tungsten incandescent or halogen) be replaced, but be purchased a new lamp. The price difference between LED and More convenient ceiling lamp is so relevant to our Bill.
  • Electricity Costs and Power Consumption
    Clearly, an LED saves electricity with the same lighting performance compared to a Mr conventional incandescent.In the past the conversion factor 1 W had me LED corresponds to approx. 10 W conventionally as a most useful, proven.

Admittedly this number, however, comes from the field of event technology, where are handled frequently with many bright colors and always the latest and best brands LEDs used. This number will be probably less for the conventional ceiling lamp. A beautiful table that compares the light yield of different light sources can be found on Wikipedia. A typical LED white LED a 40 W-Light bulb with 10 l m/W and a halogen spot with 16 l m/W indicates this with about 65 l m/W. The latter number is but with caution to enjoy, because it relates to a 100 W-Halogen lampe and halogen lamps with a larger power consumption more efficient.

Thus a good average value should be with factor 5 so find. In other words an LED-powered ceiling requires a fifth of current of a conventional Mr (halogen) ceiling lamp or the led is burning 5 times as long for the same current cost

  • Light Time
    To determine the absolute power, is of course of relevance how long the light ever glows.I am an active housing and throw once this number in the space as an annual average: 6 hours per day. This could so in winter quite sometimes 8 hours be (E.g. from 16:00 to 0:00) and in the summer, for example, 4 (E.g. from 20:00 until 24:00) watch. In the year 2190 hours would be then.
  • Price of Electricity
    In 2010, the average price of electricity in Germany was approximately €0,237 per kWh. (K W h)
  • Lamp Replacement
    In practice, LEDs hold around 50,000 hours and thus significantly longer than conventional incandescent bulbs.This must be, replaced so at regular intervals causing additional cost in addition to recent effort.

What Ceiling Lamp?

After all theoretical factors are clarified it will be time to pick out two sample models for our test for us. As LED light fixture I found on Amazon this model  found this to purchase costs approximately € 63, looks chic and has received generally good reviews. In one of the reviews, it means that the spotlight with a total 9 W is brighter than a previous lamp with 80 W. According to our theoretical calculation should match the brightness in approximately a 50 W lamp, so we need a reference product. 50 W and 80 W. This chic model of a conventional ceiling spots  is a total 84 W operated and therefore roughly fits into our criteria, with maximum 3 x 28 W, the price is €30.

We use not the maximum possible light sources for a fairer comparison, but 3 x 20 W. This brings us to a total 60 W or 600 lumen luminous flux. It is very well comparable to our LEDs. The halogen bulb will cost € 2.40 per piece. Thus, it is so, a difference of €33 in purchase price compared to 3 * €2,40 = betting to make €7,20 per lamp change over the years. Down sampled the cost of lamp replacement when the halogen lamp on the operating hours (the whole lamp, not per bulb) is 0, 36 cent so – these costs when the LED lamp.

The Power Consumption of LED and Halogen Lamp Compared

So now to the cost of electricity. We assume (see above) 6 h per day, what each brought us the following electricity costs:

60 W halogen spot 9 W LED spot
Performance 706 9 W
Price of electricity 0,237 €/ kWh 0,237 €/ kWh
Cost per hour €0,01422 €0,002133
Cost per day €0,08532 €0,012798
Cost per year €31,14 €4.67
Cost bulbs per year €7.88 0 €*.
Total savings per year €34,35

* = Of course also LED bulbs keep not forever, 0€ is so limited right. If you however emanates from 50,000 hours of operation, she would keep LED almost 23 years. 23 years no one keeps the lamp probably alone for design reasons. But other than that, would be right out of the LED lamps cost turns up so long in many cases amortised.

When Worth So the Extra Cost for a LED Light Fixture?

On average 6 hours per day, so whopping 34,35 euros per year can be saved with the LED lamp. The additional costs for the LED luminaires are so again brought in around 11.5 months.

Because the savings potential is quite enormous, if it is not even worth to dismantle an existing fully functional halogen light fixture immediately and to purchase a new led wonder. Because the entire purchase price is again brought out after only 22 months (1 year, 10 months).

Well then, nothing like at it Exchange. Very nice Incidentally, there is LED ceiling lights (mostly even free shipping) at Amazon.

The figures used in this article have obviously rather large influence on the end result. If the opinion is a number used by me is unrealistic this may please give notice in the comments. I look forward any constructive comments. Thank you.

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