[Public-List] LED Bulbs

[Mike Lehman]

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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> >
> > --
> >
> >
> > Dominic Amann
> >
> > M 416-270-4587
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-- 
Mike Lehman
~~~_/)_/)~~_/)~~~