9/13/2010

Some of the weaknesses of the new LED lights

This guy is obviously an environmentalist and he doesn't appreciate that there is a real cost to speeding up research simply as a result of government regulations. In any case, even he mentions that there are some weaknesses to these new light bulbs. For some, these light bulbs might make sense, but they are the ones who are best able to judge the costs and benefits.

The downside of LEDs, feature-wise, has always been the light color--the blueish light LEDs traditionally have feels cold, particularly compared to the warm glow from incandescent and halogen bulbs. The other knock (or feature, depending on your usage) on LEDs has been that they direct light. That makes them great for spotlights but not good for a desk lamp. And LEDs for everyday use are pricey and unlikely to be stocked in your neighborhood hardware store.
However, all that is changing. Prodded by a federal mandate to boost lighting efficiency, consumer lighting companies are producing LED bulbs with the familiar screw-in bottom for general lighting. At this point, the amount of light that these LED bulbs produce is still a bit low, at least for my tastes, but the light quality is good. And of course, whether these bulbs last for decades as manufacturers say is still unproven.
Thomas Edison wouldn't recognize most of the products in the EcoSmart line--they are cone-shaped bulbs with fins that act as heat sinks, and they have flat tops where the light source goes. These are spotlights, great for casting a beam of light from above your kitchen counter or perhaps for an outdoor flood light.
In the past year, though, lighting manufacturers have introduced LED bulbs in a shape Edison would recognize that put out a decent amount of good quality light. They still don't give off light from all sides as incumbent technologies do, but this latest generation of LEDs does a better job dispersing light, which means that you could use one (or a few) for overhead lighting.
The best part is that the prices are coming down. The 40-watt equivalent general light bulb from Lighting Science Group, which is dimmable, costs just under $20. You can buy it online now and in Home Depot stores later this month, along with the LEDs from other manufacturers, including a ceiling down light from Cree. . . . .

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5 Comments:

Blogger TooMuchTime said...

The 40-watt equivalent general light bulb from Lighting Science Group, which is dimmable, costs just under $20.

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A saw-buck for a light bulb? How "dim" do these enviro-whackos take us to be?

I've tested LCF bulbs (not LEDs yet) and they don't last as long as standard bulbs. At least in my real world tests. And to get standard blubs to be "dimmable," well I just installed a dimmer switch at a cost of less than $5.

Do these enviro-nazis ever ask real people what they use and what they do? Silly me! Climate-gate. I forgot about cherry picking your data.

9/14/2010 12:15 PM  
Blogger Gkon Electricals & Electronics Pvt. Ltd. said...

Led Light Manufacturers- led lighting manufacturers in India .Gkon offers you best led light manufacturing and provide electrical switch accessories, led light, fixtures, VPIT Ballast, MCB's, distribution. boards, AC boxes, plugs sockets, wire and cables etc.

9/15/2010 5:32 AM  
Blogger Gkon Electricals & Electronics Pvt. Ltd. said...

Led Light Manufacturers- led lighting manufacturers in India .Gkon offers you best led light manufacturing and provide electrical switch accessories, led light, fixtures, VPIT Ballast, MCB's, distribution. boards, AC boxes, plugs sockets, wire and cables etc.

10/20/2010 2:08 AM  
Blogger abbott abel said...

If you are planning on Buy led bulbs online and you do not have a chance to visit the nearest shopping center, you should consider purchasing them on the internet. The pros with purchasing on the internet are that you do not have to spend your efforts and effort viewing the nearest shopping center. All you need to do is to place your order and you will have the lights sent to your front door. The other advantage of purchasing on the internet is that you will have access to a wide range of styles other than the ones available in the nearest shopping center. When purchasing on the internet you should understand that there are many fraud websites therefore you should be careful and ensure that you do your research and recognize reliable websites to buy from.

1/24/2014 1:19 AM  
Blogger row anco said...

If you believe in global warming, then you realize this is one of the issues that is exacerbated by these greenhouse gas emissions. While some people lead their lives not worried about these issues, there are many people who are making the small contributions that they can toward alleviating this problem. Using LED lighting is one of these methods.
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2/21/2014 5:28 AM  

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