[P-3 Guy]

Originally Posted by brk-lnt

LED bulbs in current, and upcoming products, run the diode at a high temperature relative to where it would be optimally. This is a problem that is being solved with various approaches to cooling the diode/diode junction so that enough light output can be achieved to make the bulb useful without also dramatically shortening it's useful life.

“Relative” may be the important word here, as well as with your earlier statement that LED bulbs “run very hot.” Without quantifying what “run very hot” means (or your later description of “warm to hotish”), there is no basis for comparison. Perhaps when you wrote “run very hot” you meant in comparison to the normal operating temperature of a diode. As a lay person, I took it to mean in comparison to a traditional incandescent bulb, which in my opinion runs very hot; too hot to grab a 100 watt bulb without being burned after it’s been on for more than several seconds. Unfortunately, you’ve refused to clarify your statement or provide any kind of substantiation. I have no idea at what temperature a diode normally operates or how warm a diode in an LED bulb gets. You appear to be the expert and one would think that you would therefore have much easier access to the information than I, and yet you insist that I should be doing the research to prove your point for you.

Save your 'BS flag' for a topic that you have some knowledge to actually make a call on.

I have some knowledge of basic physics. If an LED bulb puts out approximately the same amount of light and a lot of heat (“runs very hot”) at 20% of the energy required for an incandescent light, something doesn’t add up.

Again, if you did some research of your own instead of making stupid forum arguments you would understand what I was describing without needing more clarification. Most people enjoy researching things they have an interest in. You seem to want others to do your homework.

My “research” to refute your claim that LED bulbs “run very hot” (whatever that means) is below. I haven’t found anything that would lead me to believe that LED bulbs “run very hot,” especially as compared to incandescent bulbs and even CFLs. If you think that I’ve made “stupid” arguments, than I suggest that you counter them with your own arguments, based on supportable facts. And please, there’s no reason to get nasty. Doing so only makes it clearer to me that you’re unable to defend your statements and therefore you feel the need to make it personal. You’re entitled to your opinion that LED bulbs “run very hot,” but until you quantify this statement and support it with facts, that’s all it is, an opinion. It’s not my job to do your homework.

This is my last response to you on this topic, as you have not contributed anything of value whatsoever.

Ah, the taking-my-ball-and-going-home ending, usually included because the poster is unable to make a reply that supports his position and that is based in reality. I’ve already provided one link; below are four more that I think add some value.

I have an open mind, and I was and continue to be willing to consider verifiable facts (not opinion) that support your position. But since it’s your position, they also have to be facts that you present.



http://news.cnet.com/8301-11128_3-20...ed-lightbulbs/

http://greenliving.about.com/od/scie..._choices_4.htm

http://www.gizmag.com/ge-40-watt-replacement-led/14765/

http://blog.nularis.com/2011/05/how-...ulbs-work.html