Guest guest Posted February 12, 2007 Report Share Posted February 12, 2007 > LED bulbs do not create damaging frequencies as CFL bulbs do. > This is not my opinion, but a fact, based on readings taken by > Dr. Magda Havas. So does this mean that LED lights do not have AC-to-DC transformers in them? For some reason, I thought they did... Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 12, 2007 Report Share Posted February 12, 2007 > > LED bulbs do not create damaging farequencies as CFL bulbs do. > > This is not my opinion, but a fact, based on readings taken by > > Dr. Magda Havas. > > So does this mean that LED lights do not have AC-to-DC transformers > in them? For some reason, I thought they did... > > Marc > Good question. It's common knowledge that LEDs themselves are emission free, but what about the power modules? Many are switching mode and produce RF. And what are damaging frequencies? 60 Hz at a few mili gauss wipes me out (take a soldering iron, or transformer for instance) - just as damaging as a cell phone or fluorescent lights. Eli Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 13, 2007 Report Share Posted February 13, 2007 No transformer needed for LED. If it had a transformer, it would light up the gaussmeter! Very different from flourescent lighting which needs ballast transformers. I suspect they are using a combination of resister and diode, since there is no large amperage requirement. My knowledge if electronics is not specific enough to design a circuit, so I might be leaving out a capacitor. Just remembered to test on the GS meter, with the 18-bulb-LED off, the reading is 47, and on is down to 43. So perhaps it does have a capacitor, like the GS filters. Marc wrote: >> LED bulbs do not create damaging frequencies as CFL bulbs do. >> This is not my opinion, but a fact, based on readings taken by >> Dr. Magda Havas. >> > > So does this mean that LED lights do not have AC-to-DC transformers > in them? For some reason, I thought they did... > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 13, 2007 Report Share Posted February 13, 2007 I called Creed, they don't use switching power supplies for their LED light bulbs. So the circuit must look something like those shown here (see " AC Line powered LEDs " : www.ourworld.compuserve.com/homepages/Bill_Bowden/page10.htm These LED drivers are switching, and produce RF noise. But they regulate the current to the LEDs. www.leddynamics.com/LuxDrive/drivers.php Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 14, 2007 Report Share Posted February 14, 2007 I just want to remind people again, that the bright white LED bulbs ARE FLUORESCENT bulbs. You can look it up. Eventually all the colored ones will be. They DO put out radiation, and make me everybit as ill as compact fluorescents and sometimes more so than the regular ones. You may still be able to find older ones that are not, but they are not the bright, bright ones. ~ Snoshoe > > > > LED bulbs do not create damaging farequencies as CFL bulbs do. > > > This is not my opinion, but a fact, based on readings taken by > > > Dr. Magda Havas. > > > > So does this mean that LED lights do not have AC-to-DC transformers > > in them? For some reason, I thought they did... > > > > Marc > > > > Good question. It's common knowledge that > LEDs themselves are emission free, but what > about the power modules? Many are switching > mode and produce RF. > > And what are damaging frequencies? 60 Hz at a > few mili gauss wipes me out (take a soldering > iron, or transformer for instance) - just as > damaging as a cell phone or fluorescent lights. > > Eli > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 18, 2007 Report Share Posted February 18, 2007 I think Garth has it about right. I suspect it is the chemicals/elements used in making the leds fluorescent, and the resulting wavelength because before that was done, older ones never bothered me. I'd suggest anyone sensitive to regular fluorescents not go nuts with leds till you've spent a lot of time with one, maybe even a flashlight, and just leave it on in your room all night, or nearby all day... see if you notice any problems. I thought they were great before being improved, but you know, if it isn't broke, fix it till it is... It may not have a measurable rf, but they absolutely have emf. As has been discussed before, absolutely everything does. I don't know their wavelength as I haven't looked it up. Radio doesn't seem to bother me much, but microwave and seriously x-ray do. There is something out there that can measure them, but I haven't looked it up. I did grab some links that might be useful for anyone wanting to know a little more about the leds: ======== http://www.worldchanging.com/archives/003669.html " It is also imporant to understand that the quantum dot stuff is just another fluorescent material, put on top of a short-wave LED. " Quantum dot: A nanocrystal. Since the term emphasizes the quantum confinement effect it typically refers to the sub-class of nanocrystals that are small enough to exist in the quantum confinement regime, and more typically refers to fluorescent nanocrystals in the quantum confined size range. www.qdots.com/live/render/content.asp Fluorescence definition: http://en.wikipedia.org/wiki/Fluorescent Phophor definition: http://en.wikipedia.org/wiki/Phosphor#White_LEDs http://en.wikipedia.org/wiki/Photoluminescence ============= http://www.sylvania.com/BusinessProducts/MaterialsandComponents/Lighti ngComponents/Phosphor/FluorescentLamps/ chemical makeup ~ Snoshoe > > Before you get too bummed, realize that what Shoeshoe is pointing out > may or may not be an issue for you, and what she is calling > " fluorescent " is dramatically different in concept and operation from > the flourescent lamps you are familiar with. > > Regular (tube-style) and compact fluorescent bulbs are mercury vapor > discharge lamps with a phosphorescent powder coating on the inside of > the glass. There are numerous things about most fluorescent bulbs > that cause radiated electromagnetic fields. > > - the electrical discharge itself through the long bulb > - the electronic ballast (now usually switching-style) which > generates a lot of " electrical noise " > - RF noise generated by the arc inside the bulb > - magnetic field radiated by the transformers in the ballast circuitry > - in addition to these sources of EMFs, most fluorescent lamps > " flicker " rapidly > > NONE of these applies to LEDs. Assuming a manufacturer doesn't > " mess it up " by using a switch-mode or transformer power conversion > circuit, there is NO measurable electromagnetic field (EMF) from an > LED other than the spectrum of the light itself. > > What shoeshoe is pointing out is that some LEDs (and ones likely to > be found in white colored LEDs) use phosphors which absorb and re- > radiate the light from the LED junction at a different wavelength in > order to produce a more pleasing color of light. It is this use of > phosphors that I assume she is calling " fluorescent " . Shoeshoe, > please correct me if I'm wrong about your meaning. > > This use of phosphors in LEDs does not in any way change the LEDs to > output a higher electric or magnetic field, but it does produce a > different " light spectrum " . Some people (like Shoeshoe) are > apparently sensitive to the spectra produced by phosphorescent > materials, and have a reaction to them. > > This certainly doesn't appear to apply to everyone that is ES, and > maybe not even to most -- as far as I can tell, I am sensitive to the > EMF field and noise produced by the ballast and discharge of typical > fluorescent lamps, but although I find some of the spectra of some > LED lamps " not pleasing " , I can't detect any electrical sensitivity > to the fluorescent LEDs. > > It may be you just need to try it. There are clearly some people > who appear to be bothered by halogen lights, which (without a > ballast) produce no measurable EMF either. > > Garth Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 5, 2007 Report Share Posted August 5, 2007 Marc said that LED bulbs put out radiation. (Some time back. I am working on catchup.) Dr. Magda Havas says they do not create any harmful frequencies whatsoever. Marc, please tell us what frequencies you metered, using what meter. Shivani Arjuna www.LifeEnergies.com ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 6, 2009 Report Share Posted January 6, 2009 > I havent seen the LED ones.. are they globes? The only ones I have seen > availablehouses are the swirly fluro ones. Please can you explain the > difference. You haven't seen the LED ones because they are still very expensive, and they still don't put out much light. But the price has (and will continue to) drop, and the light output should increase. So you should only need to stock up on incandescents until LED lights become more practical... and we figure out which brands are the good ones! The LED lights are not " swirly " ... here are some examples of what they currently look like: http://www.ccrane.com/lights/led-light-bulbs/index.aspx Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 6, 2009 Report Share Posted January 6, 2009 wow cheap.. arent they ?. But no mercury , or uv light.. and no EMF. I think most folks will adopt the swirly version en masse though.me..? I will not touch them with a barge pole. For now I am buying incandescents in bulk. Thanks for info..  Ada  unknown From: Marc <marc@...> Subject: Re: LED bulbs Date: Wednesday, 7 January, 2009, 6:35 AM > I havent seen the LED ones.. are they globes? The only ones I have seen > availablehouses are the swirly fluro ones. Please can you explain the > difference. You haven't seen the LED ones because they are still very expensive, and they still don't put out much light. But the price has (and will continue to) drop, and the light output should increase. So you should only need to stock up on incandescents until LED lights become more practical... and we figure out which brands are the good ones! The LED lights are not " swirly " ... here are some examples of what they currently look like: http://www.ccrane. com/lights/ led-light- bulbs/index. aspx Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 7, 2009 Report Share Posted January 7, 2009 > > > I havent seen the LED ones.. are they globes? The only ones I have seen > > availablehouses are the swirly fluro ones. Please can you explain the > > difference. > > You haven't seen the LED ones because they are still very expensive, > and they still don't put out much light. But the price has (and > will continue to) drop, and the light output should increase. So > you should only need to stock up on incandescents until LED lights > become more practical... and we figure out which brands are the good > ones! > > The LED lights are not " swirly " ... here are some examples of what > they currently look like: > > http://www.ccrane.com/lights/led-light-bulbs/index.aspx > > Marc > Hello Marc are you sure that LED ones don't produce any EMF ? Have you any technical documentation ? Thanks Giorgio PS about the price a friend of mine has been committed on trading/importing from China, at very cheap price ! If they don't affect ES people, it would be recommanded , at reasonable price! Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 8, 2009 Report Share Posted January 8, 2009 > > are you sure that LED ones don't produce any EMF ? > > Have you any technical documentation ? > > > Hi Giorgio, > The closest thing I have to technical documentation is this: My research > on one type of LED bulb by holding 2 meters at it and taking a picture :-) > http://seahorseCorral.org/images/emf/20090107_led_bulb_meters_1931- 800.jpg > > I am sure this one gives off zero EMF. It has no brand name, and is from > China, (but what isn't). It looks the same as the " VIVID LED Light Bulb " > at the C.Crane link Marc posted yesterday. 2nd row down from the top. 18 > LEDs, 31 Lumens, 1 watt. Only difference is I got some for $7 each > after shipping 2 1/2 years ago on eBay. > > Only regret, was the blue tint might not be ideal, and it is not quite > adequate to read by. > > > Thank you this kind of information is what I was looking for when my friend asked me to be involved in a new business opportunity to sell a 'new' Chinese brand in Italy/Europe. My regards Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2009 Report Share Posted January 11, 2009 Ditto - and failing that candles - have even been known to use a battery powered torch when things get really bad  Steph From: Marc <marcufoseries (DOT) com> Subject: Re: LED bulbs groups (DOT) com Date: Wednesday, 7 January, 2009, 6:35 AM > I havent seen the LED ones.. are they globes? The only ones I have seen > availablehouses are the swirly fluro ones. Please can you explain the > difference. You haven't seen the LED ones because they are still very expensive, and they still don't put out much light. But the price has (and will continue to) drop, and the light output should increase. So you should only need to stock up on incandescents until LED lights become more practical... and we figure out which brands are the good ones! The LED lights are not " swirly " ... here are some examples of what they currently look like: http://www.ccrane. com/lights/ led-light- bulbs/index. aspx Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 11, 2009 Report Share Posted January 11, 2009 In a message dated 1/11/2009 11:06:47 P.M. GMT Standard Time, reader41@... writes: wow cheap.. arent they ?. But no mercury , or uv light.. and no EMF. I think most folks will adopt the swirly version en masse though.me..? I will not touch them with a barge pole. For now I am buying incandescents in bulk. Thanks for info.. Ada Dont forget that you can also buy long lasting incandescents also has anyone seen the new dishwashable keyboards and mice ? could these be imersed in water and you type with surgical gloves to the imersed keyboard ? I suppose the water will not block the frequencies from the keyboard and mouse so this would be a waste of time right ? PUK Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 21, 2009 Report Share Posted January 21, 2009 On a tangent, the LED in my digicam bothers me. Also, here's a post by someone RE: LED Macbook Pro: LED Display hurts eyes! http://forums.appleinsider.com/showthread.php?t=76968 QUOTE: it's strange, my eyes really start to really hurt after a few minutes with my the new LED Macbook Pro. I'm assuming it has to do with the method used to dim the display. It's like knives in my sockets...! headache inducing.. The other odd thing is after using the display for while, everything has a sort of rose colored tint to it when I look around the room and out the window. The display itself is really a lot more yellow than a normal LCD. I tried calibrating it with an Eye-One display2 but it's the same thing. I know these displays use blue LED with a yellow coating.. To my eyes something is really unnatural about the spectrum it produces. The display actually cases the most eye strain when I lower the brightness a few clicks. It's almost as if there is a strange refresh frequency or something. It reminds me of when I look at a DLP television- those things drive me crazy too.. [One of his respondents posts:] I bought brand new macbook pro 2.5 MHz in 2008.06.27 and I have the same problem. After 30 minutes of work with the macbook pro, my eyes hurt like well. It's going back to the store. It's time to say " I DID NOT SWITCH TO MAC! " END-QUOTE > > are you sure that LED ones don't produce any EMF ? > Have you any technical documentation ? > > Thanks > > Giorgio > > PS about the price a friend of mine has been committed on > trading/importing from China, at very cheap price ! > If they don't affect ES people, it would be recommanded , at > reasonable price! > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 21, 2009 Report Share Posted January 21, 2009 Double damn. I was really excited when I started to see the first reasonably priced LED monitors become available. Perhaps this is specific to the Macbook Pro? R. > > > it's strange, my eyes really start to really hurt after a few minutes > > with my the new LED Macbook Pro= > > Hmmm, well maybe LED backlit computer monitors aren't going to be > as good as I had hoped... hurting eyes isn't really a symptom > I associate with ES, however... > > Marc > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 23, 2009 Report Share Posted January 23, 2009 Thank you for all this great information. I do believe we would not need all this nutritional manipulation and intervention if the manmade electromagnetic load in our environment today was not as high. In relation to LED lighting, I wonder if using the a computer in a different environment, that one suspects is EMF cleaner might make a difference. Also using the wireless component of the laptop puts out a strong ambient electromagnetic/RF field. It much more benign to plug the computer into a wired moden. I believe if anyone suspects they are electro sensitive it is smart to start investing in meters of different frequencies and low power densities to better determine what thresholds and frequencies might be a problem. I appreciate not all EMF emissions from computers can be measured, because the frequencies are so varied. However, alot can be measured with many retail devices. Two websites of interest to check out are: http://www.safelivingtechnologies.ca/ http://www.lessemf.com/ Quote Link to comment Share on other sites More sharing options...
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