[sudo-discuss] super efficient low voltage LEDs

[robb]

infrared goes as low as 800mV apparently
<http://www.futureelectronics.com/en/optoelectronics/infrared-emitters.aspx>

On Sat, May 13, 2017 at 1:13 PM, Cere Davis <ceremona at gmail.com> wrote:

> Red seems to have a forward voltage of roughly 1.9   at best from what I
> have seen so far.  Maybe there's better ones.
>
> --- emailing from a cell
>
> @ceremona
> http://CereDavis.com
>
> On May 13, 2017 12:45 PM, "robb" <sf99er at gmail.com> wrote:
>
>> It's my understanding that the forward voltage of a diode is .7V and the
>> voltage goes up with the spectrum from red to uv. Red being the lowest
>> voltage & lowest frequency. Not sure if that applies tho
>> On May 13, 2017 11:29 AM, "Cere Davis" <ceremona at gmail.com> wrote:
>>
>>> No no.  You’re suggestion about buck converters was good.
>>> Unfortunately, my situation might not lend itself to joule thiefs or
>>> buck converters.  Some experimentation will reveal more.
>>>
>>> On Sat, May 13, 2017 at 10:58 AM, robb <sf99er at gmail.com> wrote:
>>> > wait
>>> > you want low power leds not a way to power low voltage leds
>>> > [facepalm]
>>> >
>>> > On Fri, May 12, 2017 at 6:47 PM, Cere Davis <ceremona at gmail.com>
>>> wrote:
>>> >>
>>> >> Yep. Thanks.
>>> >>
>>> >> --- emailing from a cell
>>> >>
>>> >> @ceremona
>>> >> http://CereDavis.com
>>> >>
>>> >>
>>> >> On May 12, 2017 6:31 PM, "Jake" <jake at spaz.org> wrote:
>>> >>>
>>> >>> you need a boost convertrr, no leds work at 1.2 volts.
>>> >>> search for "joule thief"
>>> >>>
>>> >>> -jake
>>> >>>
>>> >>>
>>> >>> On Fri, 12 May 2017, robb wrote:
>>> >>>
>>> >>>> we haz buck converters
>>> >>>>
>>> >>>> On Fri, May 12, 2017 at 3:52 PM, Cere Davis <ceremona at gmail.com>
>>> wrote:
>>> >>>>
>>> >>>>> Do we have any super low voltage (like 1.2V or lower) LEDs around?
>>> >>>>> Need them for a project and don’t have time to order them.
>>> >>>>>
>>> >>>>> Thanks.
>>> >>>>> --
>>> >>>>> Cere Davis
>>> >>>>> CereDavis.com
>>> >>>>> @ceremona
>>> >>>>>
>>> >>>>>
>>> >>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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>>> 9A95
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>>> >>>>>
>>> >
>>>
>>>
>>>
>>> --
>>> Cere Davis
>>> CereDavis.com
>>> @ceremona
>>>
>>>
>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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>>> GPG fingerprint (ID# 73FCA9E6) : F5C7 627B ECBE C735 117B  2278 9A95
>>> 4C88 73FC A9E6
>>>
>>
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