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Old 04-02-2006, 02:34 PM   #1
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Moonlight questions

I have just purchased a bunch of blue leds to make a moonlight set up with and my only question is what do/should I use as power source?
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Old 04-02-2006, 07:29 PM   #2
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What value are the resistors, if you don't know then you can post the colour bands and I'll tell you what the values are..

I think I made a detailed post in one of the other moonlights threads here.

Ahh, here it is
http://www.aquariumadvice.com/viewto...r=asc&start=25
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Old 04-02-2006, 08:01 PM   #3
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lol i remember that thread
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Old 04-06-2006, 08:22 AM   #4
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Shweet work there ozz :P
And JProx didnt even have to answer LED questions this time LOL :P
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Old 04-06-2006, 03:40 PM   #5
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All I am wondering is what i need to get use to power the lights, like an inverter or something of that sort, the LEDs that i bought already have the resistors installed, so all i can tell you right now is that they are of the 10mm size, unless i cut one open i cannot tell you the resistor color/size, so any general advice is welcome. Thanks
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Old 04-06-2006, 05:04 PM   #6
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Did the package come with a note about recommended voltage? if it was a sealed unit then it should have.
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Old 04-07-2006, 04:07 AM   #7
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they are of the home made variety, and the heat-shrink tubing is already on them, the info said that they can take any where for 6-14 volts, i don't know how that correlates to plugging them in to a wall socket type fixture, will any one work?
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Old 04-07-2006, 07:51 AM   #8
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With the correct number of LEDs and the correct size resitors you can calculate out what size inverter needed.. the calculations are in the other LED threads.
HTH
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Old 04-07-2006, 08:38 AM   #9
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You will need a transformer. If you can get a universal transformer (one with a voltage selection switch) then you can start at 3v and keep moving up until you feel the resistor get warm (don't worry, you're gonna feel it through the heatshrink) or the LED pops. then you know it's too much.

The resistors I would have to guess are designed for 14v so a 12v transformer would *Probably* be correct, tho 9v would be safer, you would just need more LEDs

Also keep in mind LEDs are polarity sensitive, so if you hook one up and get no light, try reversing the power wires.

DO NOT hook an LED up to AC Voltage, and never directly to a 120v outlet. you will exceed the forward and reverse limits and at best burn your hand, at worst you will send plastic shrapnel flying everywhere.
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Old 04-07-2006, 10:22 AM   #10
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Any 9-12 volt DC adapter 200ma or higher will work, RadioShack about $15, or I have a few laying around if you would like one.
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