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Small Cabin Forum / Off-Grid Living / Thanks TomChum / LED project
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feathersnfins
Member
# Posted: 1 Oct 2012 04:34pm
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Tom,

Thank you for all your help and for answering my many questions about installing LED lights in my hunting shack. I ended up putting 6 lights on 5 circuits and couldn't be happier with how much light those little LED's put out! It's so nice to just hit a switch and not have to worry about propane! Here are a couple of pics of the panel (marine) and a shot of the kitchen area.
kitchen.JPG
kitchen.JPG
fuse.JPG
fuse.JPG


rayyy
Member
# Posted: 1 Oct 2012 04:51pm
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Lookin good F'n f.I just wired up my second light fixture in my living room using that 46 led-12 volt light bulb I bought,and I must say,that little sucker is increadible bright.Gives off as much light as my CFL 13 watts do.It's a whiter light than the others,though.

TomChum
Member
# Posted: 3 Oct 2012 10:28am - Edited by: TomChum
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Looks great!

If you have a multimeter with an amperage measurement, what is the total amps (and volts at that moment)?

feathersnfins
Member
# Posted: 3 Oct 2012 10:53am
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I wouldn't have a clue on how to check amps or volts! I don't have a meter. My father in law has one...do you test at the pos/neg lead going into the fuse block with all of the lights on at once to get total amps/volts?

creeky
Member
# Posted: 3 Oct 2012 07:13pm
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nice use of the marine panel. that looks very tidy.

I've never had any luck measuring amps as my multimeter only goes to 10 amps. maybe someone can explain how to do this safely. it seems that while the voltage (which I can measure) reads 13.01v my amp measurements seem to heat the wire up and lead to a bad smell.

i do like my warm white leds though.

TomChum
Member
# Posted: 3 Oct 2012 11:40pm - Edited by: TomChum
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To get volts, test across the positive/negative.

To get amps, you have to make a break in the main supply somehow. Either disconnect the main supply at the battery, or maybe remove an inline fuse and test across that fuse (gap). Set the meter to measure AMPS, and run all the current THRU the meter. It doesn't matter which way you run thru the meter, if you run it one way it will simply show "+" and the other way it will show the same number as "-" minus.

If you have six 2.6w bulbs, and your battery is at 12.6v, then it should be running about 1.23Amps. You can do this by math, of course, but just as an exercise it helps to understand the principles when you can measure and verify. A 10A multimeter would be perfect for this measurement.

6 x 2.6w = 15.6 total watts
15.6 watts / 12.6v = 1.23 total AMPS

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