[Public-List] LED Bulbs

[Mike Lehman]

These work great if you have standard base fixtures

On Sun, Mar 31, 2019 at 8:41 AM Mike Lehman <mlehman at gmail.com> wrote:

> Thanks to everyone...it has been an interesting topic and I learned a lot,
> Meanwhile...
>
> I ordered these from Amazon (being delivered today). I'll let you know how
> they work.
>
> 4 Pack 12V-24V AC/DC LED Edison G14 Bulbs 3W E26 Light Bulbs Low Voltage
> Edison AC DC Screw in Light Bulbs for Off Grid Solar Lighting Marine Boat
> RV 12V Interior Lighting Warm White for Camper $11.95
>
> On Sat, Mar 30, 2019 at 11:12 AM Paul Wilson via Public-List <
> public-list at lists.alberg30.org> wrote:
>
>> The root mean square (RMS) household AC voltage used for lighting and so
>> forth is 110-120 V. Peak voltage is about 170 (RMS x square root of two).
>> Peak-to-peak is 340 V.
>>
>> On Sat, Mar 30, 2019 at 2:02 AM Dominic Amann via Public-List <
>> public-list at lists.alberg30.org> wrote:
>>
>> > As for the dehumidifier - I have a cigarette lighter socket on the 12V
>> > circuit for just such appliances. For the LED bulbs - they contain a
>> bunch
>> > of circuitry to convert the 110 AC into a low DC voltage. 120 Peak is
>> about
>> > 85V RMS. Your battery is about 14V, so you would expect something like 6
>> > times less power - but of course illumination is not a linear scale, so
>> > your perception will vary (3000 lumens does not look 6 times as bright
>> as
>> > 500 lumens).
>> >
>> > On Fri, 29 Mar 2019 at 13:42, Jeff via Public-List <
>> > public-list at lists.alberg30.org> wrote:
>> >
>> > > Not to hijack the thread but I have a related question... I have a
>> > > dehumidifier (Eva-Dry 2200) with a 12V cigarette lighter cord. Can I
>> cut
>> > > off the cigarette lighter part and splice that directly into the 12V
>> > > system, or does it need some kind of adapter? So far I'm running it
>> off
>> > the
>> > > regular cord + inverter but direct from 12V would be better if
>> possible.
>> > >
>> > > As far as the bulb, are the main "marine" concerns here electrical or
>> > just
>> > > that it might not be able to be exposed to water? I imagine any LED
>> bulb
>> > > should put out much less heat than the standard one of the same size
>> and
>> > > use less power so it shouldn't be a fire hazard in the same fixture.
>> But
>> > > don't take my word for it I don't understand electricity!
>> > >
>> > > Jeff
>> > >
>> > >
>> > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>> > > On Friday, March 29, 2019 3:28 PM, americo silva via Public-List <
>> > > public-list at lists.alberg30.org> wrote:
>> > >
>> > > > don't know if its safe or not but why risk setting your boat on
>> fire to
>> > > > save a few bucks
>> > > >
>> > > > On Fri, Mar 29, 2019 at 9:37 AM Mike Lehman via Public-List <
>> > > > public-list at lists.alberg30.org> wrote:
>> > > >
>> > > > > We have several light fixtures on the boat that take standard base
>> > > bulbs
>> > > > > (like those at home). Naturally on the boat, the voltage is 12V
>> while
>> > > at
>> > > > > home it is 110V. I plan to change out the bulbs on the boat to LED
>> > > (have
>> > > > > already made this change to all of the bulbs at home). So as an
>> > > experiment,
>> > > > > I took one of the LED (Home) bulbs, that was purchased at IKEA,
>> and
>> > > tried
>> > > > > it on the boat not expecting it to work...but it did! Not quite as
>> > > bright
>> > > > > as it is when connected to a 110 lamp, but bright enough to read
>> by.
>> > I
>> > > was
>> > > > > very surprised.
>> > > > > Can anyone shed some light (pun intended) on this topic? Why did
>> this
>> > > work?
>> > > > > is it safe? It sure as hell is a lot cheaper than 'Marine' 12v
>> bulbs.
>> > > > > --
>> > > > > Mike Lehman
>> > > > > ~/)/)_/)~~~
>> > > > >
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>> > >
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>> >
>> >
>> > --
>> >
>> >
>> > Dominic Amann
>> >
>> > M 416-270-4587
>> > _______________________________________________
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>
>
> --
> Mike Lehman
> ~~~_/)_/)~~_/)~~~
>


-- 
Mike Lehman
~~~_/)_/)~~_/)~~~