[sudo-discuss] super efficient low voltage LEDs

[Cere Davis]

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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>> >>>>> GPG fingerprint (ID# 73FCA9E6) : F5C7 627B ECBE C735 117B  2278 9A95
>> >>>>> 4C88 73FC A9E6
>> >>>>> _______________________________________________
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>> >>>>>
>> >
>>
>>
>>
>> --
>> Cere Davis
>> CereDavis.com
>> @ceremona
>>
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> GPG Key:  http://taffy.findpage.com/~cere/pubkey.asc
>> GPG fingerprint (ID# 73FCA9E6) : F5C7 627B ECBE C735 117B  2278 9A95
>> 4C88 73FC A9E6
>>
>
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