Gonna change the oil
 

Nah. The light in the fridge goes out when you close the
door........................................I think.
"JohnH" wrote in message
...
I'll bet it was the bulb in the refrigerator that did it!


On Fri, 30 Dec 2005 10:37:53 -0500, "Reggie Smithers"

wrote:

JimH,

This is exactly what I need, it uses one tenth the power of a 12 volt
bulb.

I saw that there were some all around LED lights to replace the 12 volt
bulbs, but they were substantially more expensive, and only saved 1/2 the
power.

I forgot to mention that the Gel Deep Cycle battery also powered the
refrigerator, so that is probably why it always died during the night.


" JimH" wrote in message
...

"Reggie Smithers" wrote in message
...
JimH,

I have a deep cycle gel battery, When I use my anchor light, it has
never
made it through the night without being completely discharged. Is this
normal?


" JimH" wrote in message
...

"Eisboch" wrote in message
...

" JimH" wrote in message
...

"Bill McKee" wrote in message
.net...

"Eisboch" wrote in message
...

wrote in message
ups.com...
First version, otherwise why use 6 resistors instead of one
single
lower ohmage one of higher power.


I was trying to roughly calculate the power requirements. You
said
600 ohm resistors, correct? The voltage drop on the LED will be
minimal when forward biased or "on", so each branch must be about
.02 amps, times six equals .12 amps, so the power must be about
12v
times .12 or about 1.4 watts. Probably a bit more when you factor
in the LED drop, whatever it is. Significantly less than a regular
light bulb!

Eisboch


Most LED's are in the 400mw range.


How about the standard 12v bulb used for anchor lights?

I don't know what their wattage rating typically is. My guess would
be
somewhere between 10 - 20 watts, given that they are required to be
seen, what, 2 miles away at night?

Eisboch



What is the benefit for a boater on the hook overnight besides having
a
brighter anchor light? Is there a significant less draw on the house
battery over a 10 hour period?







I never had that problem.

Something you can consider is a portable anchor light such as this one
http://tinyurl.com/akeg7





--
John H.

"Divide each difficulty into as many parts as is feasible and necessary to
resolve it."
Rene Descartes

Gonna change the oil
 

On Fri, 30 Dec 2005 17:59:18 GMT, "JIMinFL"
wrote:

Nah. The light in the fridge goes out when you close the
door........................................I think.

====================================

It had better, otherwise it will keep Schrodinger's cat awake.

http://www.phobe.com/s_cat/s_cat.html

Gonna change the oil
 

K. Smith wrote:


The one on my boat is "maybe" visible at 2 miles, in complete darkness
you can see a pin prick of light but it's so tiny you're not sure if
it's just what you see when you look that hard at the dark:-) but by
well over a mile it's definitely in play & by 1 mile very clear.

Here the pleasure boat rules just require "visible" at 2 miles.

K


What brand of LED are you using?

There are some (pricey) LED lights made in the Netherlands, called LOPO
lights, that are certainly a lot brighter than a standard bulb. I first
noticed them about a year ago at a boat show and they appeared
dazzlingly bright even in an indoor setting with a tradeshow light
level.

You could probably get a "deal" on some if there isn't currently a
distributor in AUS.

http://www.lopolight.dk/

Gonna change the oil
 

"Reggie Smithers" wrote in message
...

I forgot to mention that the Gel Deep Cycle battery also powered the
refrigerator, so that is probably why it always died during the night.



WHACK on the head!

All my calculations for naught ....

Eisboch

Gonna change the oil
 

"Reggie Smithers" wrote in message
...

I forgot to mention that the Gel Deep Cycle battery also powered the
refrigerator, so that is probably why it always died during the night.



Now *this* is what wrecked.boats is all about .....

Hilarious ...

Eisboch (gasping for air laughing)

Gonna change the oil
 

Since my boat came with 2 batteries, and this is similar to most of the
smaller cruisers I have seen, how do most people handle the refrigerator at
night, do they only keep it on when the engine is running?

Without some major work, it would be hard to add a 3 rd battery in the
bilge.



"Eisboch" wrote in message
...

"Reggie Smithers" wrote in message
...

I forgot to mention that the Gel Deep Cycle battery also powered the
refrigerator, so that is probably why it always died during the night.



WHACK on the head!

All my calculations for naught ....

Eisboch

Gonna change the oil
 

Eisboch,
I am glad I could bring some joy to your day. ; )


"Eisboch" wrote in message
...

"Reggie Smithers" wrote in message
...

I forgot to mention that the Gel Deep Cycle battery also powered the
refrigerator, so that is probably why it always died during the night.



Now *this* is what wrecked.boats is all about .....

Hilarious ...

Eisboch (gasping for air laughing)

Gonna change the oil
 

"Reggie Smithers" wrote in message
...

Since my boat came with 2 batteries, and this is similar to most of the
smaller cruisers I have seen, how do most people handle the refrigerator
at night, do they only keep it on when the engine is running?

Without a generator, a cooler and lotsa ice is your best bet. A refer will
kill a group 24 or 27 battery in about 4-6 hours.


Eisboch

Gonna change the oil
 

"Eisboch" wrote in message
...

"Reggie Smithers" wrote in message
...

Since my boat came with 2 batteries, and this is similar to most of the
smaller cruisers I have seen, how do most people handle the refrigerator
at night, do they only keep it on when the engine is running?

Without a generator, a cooler and lotsa ice is your best bet. A refer
will kill a group 24 or 27 battery in about 4-6 hours.


Eisboch


We never had a problem running a refrigerator while away from shorepower
overnight. But the boat had 3 group 31 deep cycle batteries though.

Gonna change the oil
 

Ok, I guess it is time to get a new boat with a genset.
Thanks for the help.



"Eisboch" wrote in message
...

"Reggie Smithers" wrote in message
...

Since my boat came with 2 batteries, and this is similar to most of the
smaller cruisers I have seen, how do most people handle the refrigerator
at night, do they only keep it on when the engine is running?

Without a generator, a cooler and lotsa ice is your best bet. A refer
will kill a group 24 or 27 battery in about 4-6 hours.


Eisboch

Gonna change the oil
 

Eisboch wrote:
"K. Smith" wrote in message
...

wrote:

With few people at work, its hard to get much done. Today I woulda got
more done on the boat but spent it at work. I'll go to the boat to
change the oil and engine zinc on my Yanmar 2GM tomorrow.
Tried to find some 600 ohm resistors at Radio Shack for my homemade
ultra-bright LED anchor light but no luck, will havta order em.


It seems the LEDS are the thing, trucks etc & I assume your traffic stop &
speed limit lights are all LED arrays now??? Here they're replacing them
with LEDS, apparently much less power & of course if one dies the traffic
light is still functional.

Torches are all going LED & still seem to have plenty of punch.

As for anchor lights we have used them for about 3 yrs now, but we buy
them.

The problem with using them as a "real" anchor light is compliance, in the
probably unlikely even you were run down in the night while at anchor the
insurance people would use whatever they could to claim you were not using
legal lighting.

The one on my boat is "maybe" visible at 2 miles, in complete darkness you
can see a pin prick of light but it's so tiny you're not sure if it's just
what you see when you look that hard at the dark:-) but by well over a
mile it's definitely in play & by 1 mile very clear.

Here the pleasure boat rules just require "visible" at 2 miles.

K


Here, at least some are being sold as "USCG approved" and suprisingly have
only 2 or 3 LEDs. Same requirements: visible at 2nm. Part of the
brightness secret is the use of a molded Fresnel lens. Even the truck
lights have mini Fresnel lens molded into the plastic housing. Fresnel lens
have been used in lighthouses since they were first built and concentrate
the light for maximum visibility.

Eisboch



OK yes that must be right because the light on the white cabin top is in
streaks, I assume being focused by the plastic lens.

K

Gonna change the oil
 

wrote:
K. Smith wrote:



The one on my boat is "maybe" visible at 2 miles, in complete darkness
you can see a pin prick of light but it's so tiny you're not sure if
it's just what you see when you look that hard at the dark:-) but by
well over a mile it's definitely in play & by 1 mile very clear.

Here the pleasure boat rules just require "visible" at 2 miles.

K



What brand of LED are you using?

It's not an "approved" anchor light I think I mentioned it here probably
at least 2 yrs ago, it's just a large garden light, the transformers
that come with them are 12 volts so they're OK, all plastic so no
corrosion & the current one has been there at least 2 but probably 3 yrs
now.

Even though they've come down in price it was only $20 back then.

Ummm a bit sheepishly:-) I better give credit when it's due Chuck; good
job on the NG well done.

K



There are some (pricey) LED lights made in the Netherlands, called LOPO
lights, that are certainly a lot brighter than a standard bulb. I first
noticed them about a year ago at a boat show and they appeared
dazzlingly bright even in an indoor setting with a tradeshow light
level.

You could probably get a "deal" on some if there isn't currently a
distributor in AUS.

http://www.lopolight.dk/

Gonna change the oil
 

I use 6 resistors and put everything in parallel so that if one LED or
resistor goes bad the entire light does not go out.
Fresnel lenses are useful if the light is emitted in all directions.
In these LEDs, the light is emitted into a 45 degree cone so the
Fresnel lens is not too useful. My 6 LEDs are spaced so their cones
overlap.
As far as Shrodingers Cat goes, my next cat will be named "Psi" and her
kitten will be named "Eigenvalue".