the pros and cons of low energy led lighting
The cost difference is a shortage of ordinary incandescent lamps.
There is no doubt that the LED equivalent bulb (
For example, 6w LED spotlight as a direct replacement for 35w GU10 halogen lamps)
Much more expensive than the original or CFL alternatives.
However, the price of low energy led is higher compared to incandescent lamps and energy efficient CFL bulbs, and there are three points to remember.
First of all, the price difference reflects the fact that the use of LED for ordinary home lighting is still very novel, although the level of manufacturing and consumer consumption has increased
In the coming months, prices will fall sharply once both are fully listed.
Second, related to the observation section above, the cost of LEDs has dropped by 20 times in every decade.
Haitz\'s law reliably predicts this feature (
For computer chips and similar reasons, this is very similar to Moore\'s law, mainly because LEDs, like computer chips, are pure electronic devices).
Haitz also said that LED performance (
Amount of light per watt of electricity)
It has grown tenfold in the same decade.
Third, perhaps the most interesting thing is that the price of bulbs is almost completely irrelevant in terms of domestic lighting costs.
Even if the normal bulb is completely free and the cost of the LED light is high, let\'s say something outrageous, like $80 per LED light, which is an unusual but easy to prove fact, it will still be more economical to buy LED low energy lamps.
The reason for this is simple: the cost of electrical lighting is the cost of energy I. e. electricity.
The cost of the actual bulb is not important;
What really matters is the cost of running them.
In addition, as the led lasts tens of thousands of hours (
Decades of use in practice)
Unlike regular bulbs, you only have to pay the purchase price once, and regular bulbs can only last 2000 hours or more a year.
The second biggest complaint about low energy LED lighting is the level and quality of the light, or in technical terms, the brightness and color of the light.
The concern about brightness is mainly due to historical concepts of LED lighting applications such as LED Christmas lights and pocket flashlights, which clearly do not provide any products close to home lighting.
However, you can now purchase one of the latest sharp Zenigata LED series bulbs with a rated power of 80 lumens per watt (
To understand what this means, consider that the standard 40w incandescent lamp provides about 360 lumens and the 60w bulb provides about 540 lumens, which gives a ratio of 9 lumens per watt.
Any product that exceeds 25 lumens per watt can be classified as an energy-saving bulb.
Zenigata LED bulbs consume 6.
7 watts, resulting in 6.
7*80 lumens/Watts, 536 lumens, comparable to standard 60w incandescent lamps.
So you can now replace all 60w bulbs with Zenigata LED bulbs rated 6.
7 watts, consumption of 1/10 (or 90% less)electricity.
Do you remember Heinz\'s law?
Due to performance improvements, you should be able to get the same 60w lighting from 3 watts 18 months from now.
Like CFLs, LED lights tend to be a bit cool blue, and we\'re more used to warm yellow white.
This is a common problem now solved by the use of color fluorescent materials (
These do reduce the luminosity, but this in turn is compensated by the continuous increase in led output per watt of lumens).
The third factor that may be considered to be compared to low energy LED lighting is that the light emitted by the LED has an intrinsic directionality that does not scatter in all directions like incandescent lamps and fluorescent lamps.
In spotlights, floodlights, or bright reading lights, this is actually acceptable, but it is not particularly effective for general ambient lighting such as analog desk lamps.
Nevertheless, ordinary lighting bulbs with LED power supply have become more and more common and are doing well here.
The two obvious advantages of low energy LED lighting are easy to transform and ecological certification (
In addition to simple energy saving).
LED lights are widely used in all common base accessories such as power-powered GU10 and 12v MR16 spotlights, low energy standard base GU24, and conventional bayonet holders and Edison screw fittings.
LED lights also do not present many inherent problems associated with CFLs, such as: obvious poor start-upup times;
Shortened service life due to frequent opening and closing;
And bulky bulbs.
However, one of the most widely known advantages of low energy LED lighting compared to energy-saving CFL bulbs may be that they do not contain toxic mercury steam or other unpleasant materials, so, protecting the environment does not pose a serious health risk, nor does it require cumbersome and expensive disposal procedures.
To sum up, the main perceived disadvantages of domestic energy-saving LED lighting are cost and application (
Brightness and color).
However, as we can see, the cost of the bulb is actually a red herring --
The real cost of electrical lighting is the price of electricity, at which point ultra low energy LED lighting puts everything else including energy efficient CFLs in the shade completely (pun intended).
As for brightness and light quality, the balanced LED light provides a cleaner and clearer light than the CFL bulb, and provides greater flexibility in color selection and brightness.
Finally, compared with competitors, the biggest advantage of low energy domestic LED lighting is that the lighting industry itself regards domestic LED lighting as the future and can hardly hide its contempt for CFLs.
Lighting giants such as Philips have recorded that they will not invest another dollar in CFLs, and their entire R & D work is now focused on domestic LED lighting technology.
Those who care about ecology
Technology trends are clear. There is a world. wide phase-
Incandescent lamps are already in use and are scheduled to be completed in the next few years.
Given the international legislation prohibiting incandescent lighting and the lack of support for already outdated and unpopular CFL, the future of lighting is almost certain --
Use low energy LED lights.
With the development of advantages, I think this is very noticeable.