I don't know where the 230% efficiency number of LEDs come from. But it surely must have been something like 230% compared to some other lamps.
No, it's real. Power input, 30 picowatts. Light output, 69 picowatts.
The catch is that the 230% only refers to electrical efficiency - it makes up the difference by extracting heat from its surroundings. Modern air conditioners are also frequently over 100% efficient in that sense, of course.
I don't know where the 230% efficiency number of LEDs come from. But it surely must have been something like 230% compared to some other lamps.
No, it's real. Power input, 30 picowatts. Light output, 69 picowatts.
The catch is that the 230% only refers to electrical efficiency - it makes up the difference by extracting heat from its surroundings. Modern air conditioners are also frequently over 100% efficient in that sense, of course.
Thanks for the link.
OK, in that case I kind of stand corrected, but not. With thermal energy in the balance, of course, the efficiency is totally different. Even a Peltier element, known for it's lousy efficiency, would have > 100% efficiency: it outputs more heat than the electric energy you put in.
Take thermal, electrical, chemical, nuclear etc...energy in the balance, the efficiency is always 100%. What you put in comes out, perhaps in another form.
But the LED thingy is new to me. Confirmed by others than the original developers? The solution to global warming; cool the air, beam out the energy in space
To have progress, there must be some people questioning "known" truths, but challenging the very fundamentals, requires more than tinkering in the garage. The fundamental laws of science don't just stand on their own. They are confirmed by thermodynamics, physics, chemistry, astronomy, physical chemistry etc but from different approaches. To break one, you have to break all. The tin-hats tend to see that as a global conspiracy from traditional science against new ideas.