well there is a myth from the mythbuster.
saved money with LED red yellow green street signal lights
mabey they would have if sombody had done it correctally, but in this city after forking over the buku bucks that it costs to switch them over, they have been crapping out sections of the modules. WAY before the age of the led would be an issue.
same thing goes for some huge jumbotron type displays, there are lots of missing pixels on them, that before might have been a full time job replacing little incans, but because sombody didnt solder or vibration protect, or use quality components, they also are right back where they started.
at vastly higher costs for the install, and the hopes and dreams of the people who paid for an put this stuff in, they still got those dreams bashed by some unexpected problems and poor craftsmanship.
another one is signs on schools, another goverment hole for leds. what once was a florescent light sign with black lettering, has now become a computerized piece of junk that cost a load, and fails miserably. one person out of a job (changing the letters on the board) 3 people put to work, one running a computer, one fixing the board, and one wondering why it isnt working again
and they COULD have socketed this stuff, IF sombody had notified people of all the possibilities, instead its back to the shop with a lot of it.
He does make a great point on directionality, and awareness. these stupid chandelabras here, waste 1/2 thier light lighting a ceiling that is so high, little of the light makes it back. save 50% power with leds, then dont light what you dont use ALSO, and it beats them little florescent bulbs.
and people havent put SHADES over leds for cute design features, blowing 2/3rd of the light out.
when people go solar, they (suddenly out of the blue for some strange reason
become aware of the actual consumption of things.
led and or solar, or even analizing anything about your consumptions, and directionality and waste, and time on, can save lots of power, most homes i have seen can save about 40% with no loss to the human. now go clean your refridgerator coils
Then the life time of the phosphors Vrses the LED die, is still a spec that has not been updated on much of any sales for led light.
the led WILL last for 100k hours or even more, we can prove that, because they have been burning for that long, but everything with phosphors, dies much sooner, including the CRT monitor. very few spec sheets and sales trash identifies the actual lifetime of the phosphors.
and Lumping, lumping all of leds in the same pile, when there indeed are MUCH better quality , lifetime and output ones than others.