[Public-List] LED Bulbs

[Dominic Amann]

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