DIY moonlight ? - The Planted Tank Forum
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post #1 of 16 (permalink) Old 06-24-2011, 08:53 PM Thread Starter
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DIY moonlight ?

So I would love to add a moonlight to my tank, seeing as my lights are off more than they are on. I am a pretty handy guy, but not so much when it comes to electrical stuff. Would it be as simple as wiring one of these to a 120V AC to 12V DC adapter like this? I don't know if it would require a resistor or anything like that, or whether the amperage rating of the adapter matters. My wife would prefer that I not burn the house down.
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post #2 of 16 (permalink) Old 06-25-2011, 10:27 PM Thread Starter
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No ideas?


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post #3 of 16 (permalink) Old 06-26-2011, 01:53 PM
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The LED strip is only 1.8 watts and your proposed supply can supply 12 watts (12 volts out x 1 ampere capabiliy = 12 watts). Or if you prefer, the LED supply current for 1.8 watts is only 0.15 amps (1.8 watts / 12 volts = 150 milliamps). So the adaptor isn't overloaded.

From what's on-line, there is not enough information to know if the LED strip has current limiting resistors built in or not. I would expect that is part of the design.

Update: looking at the detail photos of the LED strip I can see surface mount resistors between the LEDs. You shouldn't need any additional resistor unless you want to dim the lights down some more.

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post #4 of 16 (permalink) Old 06-26-2011, 02:56 PM
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They have those cheap LED strips on ebay why not just pick one of those up? Then you don't have to worry about electrical work.
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post #5 of 16 (permalink) Old 06-26-2011, 06:16 PM
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Those are the same led strips found on e auction bay and will work by directly connecting with the DC 12v 1 amp adapter. Works great for cheap moonlighting.
I have used similar strips in the past and works ok.

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post #6 of 16 (permalink) Old 07-02-2011, 11:17 PM
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I will post my DIY moonlight setup in like an hour or so, gotta wait for it to get dark to get good pics
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post #7 of 16 (permalink) Old 07-03-2011, 12:03 AM
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I made mine last night and it is ghetto fabulous it consists of 5 blue led's hot glue card board and a 5 v phone charger. i can post pics if you want
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post #8 of 16 (permalink) Old 07-04-2011, 07:49 PM
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Quote:
Originally Posted by coil1002 View Post
I made mine last night and it is ghetto fabulous it consists of 5 blue led's hot glue card board and a 5 v phone charger. i can post pics if you want
I want to see that


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post #9 of 16 (permalink) Old 07-04-2011, 08:51 PM
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there hot glued in the hood. I run my whole tank off a plc controller so I removed the 5 volt charger and just power them off one of the analog outputs on the controller I can now dim them and mimic lunar phase
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post #10 of 16 (permalink) Old 07-05-2011, 01:32 AM
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Those auto leds will work with one of the universal adapters that can be set at different voltages. That is exactly what I did on my tank and I used the voltage selector as sort of a dimmer switch because they were brighter than I thought they would be.

You can see my DIY in my signature.

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post #11 of 16 (permalink) Old 07-05-2011, 03:39 PM Thread Starter
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Nice DIY HouseofZOO, do you mind sharing what auto store you found the light at? I like how easy that converts to a moonlight.
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post #12 of 16 (permalink) Old 07-05-2011, 03:42 PM
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I have these Hamilton moonlight strips and I am incredibly happy with them - so quick and easy, just stick it on.



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post #13 of 16 (permalink) Old 07-05-2011, 06:19 PM
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Heres a pic of mine. I focused it on the shrimp/dwarf frog cave so they have light on that side of the tank and the other is still dark so them and the fish can choose where they want to hang out and it gives a nice accent of just having the cave glowing.

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post #14 of 16 (permalink) Old 07-05-2011, 06:30 PM
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I have this moonlight ($16 from ebay) on my 20 gallon and am very happy with it. I've used different blue moonlights before but i'm really liking the look of a few white led's mixed with blue's. Also waterproof so you can mount it inside the aquarium for effect lighting.






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post #15 of 16 (permalink) Old 07-05-2011, 07:06 PM
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Quote:
Originally Posted by BlueJack View Post
I have this moonlight ($16 from ebay) on my 20 gallon and am very happy with it. I've used different blue moonlights before but i'm really liking the look of a few white led's mixed with blue's. Also waterproof so you can mount it inside the aquarium for effect lighting.

this looks a bit too bright to be used as a moonlight


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