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Futuristic-Looking LED Bulbs

Many companies are hard at work perfecting LED replacement bulbs for release in the next few months. It's taken a while to work out the kinks in LED lighting to make them appropriate for home use and more efficient. Ahead of some of the larger lighting companies, Lighting Science has introduced the SoL R38, equivalent to a 50-60W incandescent, and it looks weird.

The fins are heat sinks that dissipate the heat generated from the back of the LED. They're necessary for color accuracy and for extending the life of levitra samples the light source.

Some companies like Journée are trying to play up the strange aesthetic in track lighting formats. The Lotus Luminaires are offered in different colors and resemble something off a spaceship.

It's still yet to drug generic levitra be seen how LED bulbs will work in traditional lighting fixtures or if new fixtures will have to be created.

The good news is that the bulbs have a life of 50,000 hours, use 70% less energy than incandescents and the prices will come down over time. The SoL R38 is $145 now and the Lotus Luminaires are $600 for a set, but both companies are working on cheaper manufacturing techniques. Also, with competition arriving in a few months from bigger manufacturers, the bulbs are likely to become more affordable.

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LED lights
written by Kate, November 05, 2008
These lights are really crazy looking! But, it is not like you are normally looking at the lightbulb anyway. I wonder if they could bring down the price if they did not try hard to make them look more aesthetically pleasing...

I look forward to the LED lights becoming more affordable, what an exciting step to more energy efficient homes!
written by gittenlucky, November 05, 2008
These lights are crazy looking. It is too bad LEDs take a lot of energy to we choice cialis in australia for sale manufacture and are expensive. I am still following Vu1 very closely since that article was put up on ecogeek a few months back. They should be producing their lights soon, and hopefully my stock will jump. It is currently up 40% from when I bought it, the day I saw it on ecogeek.
Not green!
written by Philthy, November 05, 2008
These devices are certainly not green. The energy consumed in the manufacture of the heat sinks alone would be enough to light up a house for a month.
Re: heat sinks
written by HankS, November 05, 2008
The energy consumed in the manufacture of the heat sinks alone would be enough to light up a house for a month.

True, but the light runs on 70% less energy for 5.7 years. That saves a lot of energy and wasted bulbs, including CFLs, which contain mercury.
another choice
written by Robguy, November 06, 2008
Here in Australia there is talk of banning incandescent, and programs giving homes free CFLs. I've been a little concerned about people not knowing how to properly dispose of them or just tossing them in the trash out of convenience. While florescent lights of all types help to save energy, there are still some negative points. I'm glad people are still looking for alternatives.
Something weird here
written by Carlos Dias, November 06, 2008
So, if the LEDs are so efficient, why do they need such a monster heat sink. They are allegedly more efficient than CFLs, which don't get hot, so is there an expert on hand to explain the heat?
written by EV, November 06, 2008
The reason LEDs need cooling while CFLs do not is how does levitra work due to their physical size. Say a flourescent generates 10W of heat. Now, an LED may only generate 5W of heat. However, because the LED has 1/100(?) the volume of ordering viagra online legal a flourescent all that heat is more concentrated. Further, since the surface area is also much less, it is harder to dissipate that heat into the air.
written by Clinch, November 06, 2008
It's because LEDs are a lot smaller/compact than CFLs, so although they produce less heat, it's on a much smaller area of the bulb, so the heat per volume is higher.

Although I curious if the heatsink is optimized for average room temperature, or for hot climates (in which case, bulbs use in more temperate areas could work just as well with less cooling fins).

I'm also surprised at the high pricetag, seeing as there are LED bulbs available for single digit sums (although there is a huge difference in the technology).
too bad
written by corey, November 06, 2008
Too bad LED's have poor colour rendition and female viagra pills even poorer colour temperature control. They are still impractical in residential use until they sort these issues out....unless you like your food to canada cheap viagra jelly look grey and skin to look blue.
written by greenerguy, November 06, 2008
It is nice to see the first LEDs arriving at our local hardware store... prices starting at $39 and can be used in a regular socket... time to start testing them out.
written by Clinch, November 06, 2008
Not all LEDs have poor colour rendition, or colour temperature, the top of the range ones with the latest technology (i.e. these ones) certainly don't (one of the sites even states "excellent color rendering").

These are ideal for residential use, the only problem however, is cost.
written by jake3988, November 06, 2008
I hate companies that do this. We don't need these these to look futuristic. We need them to be cheaper!

It's wildly worth it in the long run (nearly $500 of savings over its life!) but the upfront cost hurts. When I get my own place, I'll buy one every couple of months until every light bulb is replaced. Then I won't need to bother buying another light bulb for a decade.

Most LEDs look like normal light bulbs already (Geobulb, evolux, luxetera), fit 99.9% of fixtures, and they're actual white light! I love them!
written by Carl, November 06, 2008
Rather than comparing LEDs to incandescents, we should compare with CFLs! These LED lights are less efficient
in raw lumens/watt-- 34 for the Lotus, vs 60 for current
CFL energy-star rating (e.g. the $4 EDXO-23 at 63 L/W), or 42-48 in a Popular Mechanics test. The LED lights are a spot beam, though, so the CFL measurements depend on
the bulb and fixture. Also, LEDs won't have limited life turning on brand name viagra and off all the time.
incandescents now, incandescent forever
written by Jereeba Zamis, November 06, 2008
"These devices are certainly not green."

So, shut yer pie hole and buy a @%$!&* incandescent bulb there George Wallace.
written by EV, November 06, 2008
I'm also surprised at the high pricetag, seeing as there are LED bulbs available for single digit sums (although there is a huge difference in the technology).

It's because of two things that are necessary. The first is that the LEDs in bulbs need to be capable of higher output than your regular ones you can buy at radioshack or see on your computer case. Go over to buy viagra online no prescription Digi-Key and look at their catalog for high power LEDs to see what the cost is buy levitra online from canadacheap levitra tablets for the brighter LEDs.

The second is that the LED bulbs need to take the AC power in the outlet (120v or 240v depending on location) and reduce the voltage down to around 5 volts. LEDs would burn out in an instant at 120v.

You basically have some equipment that needs to be fit into a very tiny space that is not necessary for either incandescents or fluorescents.
There are other consideration
written by Dorsey, November 07, 2008
LED lights are rather directional. Like the LED flashlights that I use they are a difficult hue and they give light OK for a flashlight. If a LED were manufactured in the shape of look there canada viagra a regular light bulb so that it would give light in a lot of directions as light bulb does it would use a lot of power, generate a lot of heat and only now cialis profesional cost and very high price.

Those that want to outlaw the filament bulb are simply dictators. Everything has a special niche and does the usefull link cheapest levitra in uk best there. The disposal of florsecent lights or LED lights has not been addressed well concerning the polution caused.

I for one think that in our rush to accept the new things we should study very carefully what to preserve of the old.
written by Tam, November 10, 2008
The reason LEDs need such large heat syncs in because their lifetime is highly dependent upon the temperature at the p/n junction IN the LED where electrons are jumping (making light). Unfortunately, cool looking or not these things are necessary. I am convinced the retrofits are not a good idea. LEDs are SO different from incandescents and CFLs, the same fixtures (with optics designed for different light sources) do not utilize the light distribution like it should. Also, no heat sync= life shorter than incandescent, ESPECIALLY in enclosed fixtures. No, LEDs need their own dedicated fixtures.

They also prove costly because LEDs are current driven, not voltage driven. AC current fluctuated, so these fixtures need AC/DC drivers with constant current.

So, yes there is hope, YES they are green! You just need to be sure they are as efficient as the manufacturers claim. Don't be fooled by retrofit claims, and when you find the right product make the investment. It will pay off, the cheap items will not.

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