Diy Moonlights - The Planted Tank Forum
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post #1 of 16 (permalink) Old 08-21-2010, 04:46 AM Thread Starter
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Diy Moonlights

I found some 18" long clear marker lights that have 20 LEDs in them. They are wired for 12 volts but I am using a 9 volt power supply on two of them. Right now they are sittling on the tank. I will mount them tomorrow on one of the lights.
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post #2 of 16 (permalink) Old 08-21-2010, 12:40 PM
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Let us know how long they last, I have tried some automotive lights like this with a power supply, 12v to 12v and they ended up fading away...weird. I am also working on moon lights but have done more research and am going to build my own setup, Got the parts on ebay for less than 10 bucks.

Looks good though, how about a shot with the lights on?


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post #3 of 16 (permalink) Old 08-21-2010, 07:06 PM Thread Starter
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Here they are mounted.
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post #4 of 16 (permalink) Old 08-21-2010, 08:55 PM
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Here they are mounted.
Are they rope lights?
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post #5 of 16 (permalink) Old 08-21-2010, 09:11 PM
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Rope Lights, never thought about using those, I've got tons of those!


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post #6 of 16 (permalink) Old 08-21-2010, 10:34 PM Thread Starter
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Are they rope lights?
No they are marker lights for big rigs. I am assuming that they must be pretty tuff to stand up to the weather and vibration of the open road.
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post #7 of 16 (permalink) Old 08-22-2010, 12:02 PM
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Rope Lights, never thought about using those, I've got tons of those!
From what I have read I don't think the rope lights will penetrate down very far in the tank.
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post #8 of 16 (permalink) Old 08-22-2010, 07:26 PM
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I have ordered a lot of led's and resisters, waiting for them to arive. But I am thinking of useing just 6 or 8 for my 100 long, I realy don't want it bright. Buts its going to be an experemnet to see how many it takes. My numbers are probobly low anyway.


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post #9 of 16 (permalink) Old 08-24-2010, 03:32 PM Thread Starter
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They have been running for a few days and they look very nice at night. Not to bright and a very easy way to go in my opinion. No soldering and already encapsulated with mounting holes built in.
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post #10 of 16 (permalink) Old 08-25-2010, 04:01 PM
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Where did you get them from?
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post #11 of 16 (permalink) Old 09-09-2010, 06:49 PM Thread Starter
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Let us know how long they last, I have tried some automotive lights like this with a power supply, 12v to 12v and they ended up fading away...weird. I am also working on moon lights but have done more research and am going to build my own setup, Got the parts on ebay for less than 10 bucks.

Looks good though, how about a shot with the lights on?
Still going strong..
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post #12 of 16 (permalink) Old 09-09-2010, 07:42 PM
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What is the specs on your power source? I had used a 12v power adapter for some old electronc item. I think it put out 12v ac, dose your put out 12v dc or ac?


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post #13 of 16 (permalink) Old 09-09-2010, 08:14 PM Thread Starter
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What is the specs on your power source? I had used a 12v power adapter for some old electronc item. I think it put out 12v ac, dose your put out 12v dc or ac?

It is D.C. A.C. will not work with these.
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post #14 of 16 (permalink) Old 10-28-2010, 08:53 PM Thread Starter
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Originally Posted by xGROMx View Post
Let us know how long they last, I have tried some automotive lights like this with a power supply, 12v to 12v and they ended up fading away...weird. I am also working on moon lights but have done more research and am going to build my own setup, Got the parts on ebay for less than 10 bucks.

Looks good though, how about a shot with the lights on?


Still running strong.
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post #15 of 16 (permalink) Old 10-31-2010, 02:10 PM
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I did a setup like these over my 10g. Local auto parts store had LED driving (fog) lights for $15.

My 12v wall wart gave me around 15v even with the LEDs wired in parallel (and they were way too bright). Cheap 12v wall warts often put out way more than 12v even with a load.

So I wired the two fog lights in series, which dropped the voltage down to around 7.4v each.


They've been running non-stop for the past month or two--- no heat, no fade, so far so good .


Quote:
Originally Posted by xGROMx View Post
Let us know how long they last, I have tried some automotive lights like this with a power supply, 12v to 12v and they ended up fading away...weird. I am also working on moon lights but have done more research and am going to build my own setup, Got the parts on ebay for less than 10 bucks.

Looks good though, how about a shot with the lights on?
'


Did you take any voltage readings of your 12v power supply? Most of the 12v supplies I have actually fluctuate and give a LOT more than 12v. I have one that will give me, at times, over 20v.
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