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Need help finding the proper DC adapter for an LED Art Picture

Need help finding the proper DC adapter for an LED Art Picture

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  #1  
Old 04-28-11, 05:51 PM
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Need help finding the proper DC adapter for an LED Art Picture

I am helping a friend who has one of those LED Art pictures and they lost the power adapter and I don't know the voltage of it. Nowhere to be found on the picture and the company is long gone
The thing has about 24 LEDS and the plug looks like a 3.5 MM headphone jack
So I need help on a way to find the proper voltage and the polarity of the jack

Here are two pictures my friend sent me (Sorry for the poor quality images but my friend only has a Cell Phone)





I was thinking about getting a Multiple voltage Wall Power adapter and adjust the voltage until it lights up but I don't want to fry the LEDS and I assume there is a safer way to find out the proper voltage

Thanks
 
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  #2  
Old 04-28-11, 06:32 PM
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I think I would try to find one of those in the art or framing stores and get the info you need.
 
  #3  
Old 04-28-11, 07:01 PM
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Just take it to a sign shop. They should be able to check out the guts.
 
  #4  
Old 04-28-11, 07:32 PM
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Originally Posted by Justin Smith View Post
Just take it to a sign shop. They should be able to check out the guts.
I seriously doubt that. Why would you think that if this is something designed as residential art? Big difference between art and commercial signs.
 
  #5  
Old 04-28-11, 08:36 PM
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Here is the company that made it. Call or e mail them.

Neon by NEONETICS HOME of Neon

Mike NJ
 
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Old 04-28-11, 08:43 PM
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Originally Posted by lawrosa View Post
Here is the company that made it. Call or e mail them.

Neon by NEONETICS HOME of Neon

Mike NJ
Where did you pull that info out of? Just because they make LED lighted art doesn't mean they made that one..


I'm going out on a limb here but I think it would be a safe bet that it requires a 12v supply, at about 750-1000mA. White LEDs usually run 3.6v. If it has 24 LEDs it would stand to reason that they are wired 8 sets of 3 in series. The fact that it uses a 3.5mm plug throws a monkey in the wrench, because regular coaxial ("barrel") plugs are normally tip positive to reduce the possibility of shorting, but 3.5mm could be either since both contacts are exposed. I would personally think tip negative would be marginally safer, but you're 50/50.
 
  #7  
Old 04-28-11, 09:07 PM
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JerseyMatt, you know I am the king of finding info online. Thats all I do all day...LOL

I did a search of "Justification for Higher Education"

Any where you see that they sell it it says made by Neonetics.

Good enough?

Neonetics 3JUSTI Justification Higher Education Neon LED Picture Frame Art - Decor Universe

Mike NJ
 
  #8  
Old 04-28-11, 09:14 PM
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But that one has neon in it. The OP's doesn't. And I was under the impression that is a lightbox pic, because it doesn't look like there are LEDs sticking through.
 
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Old 04-28-11, 09:34 PM
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Keep in mind you are looking at the back in the o/p's picture. The one lawrosa posted is pretty cool with placement of leds and all.
 
  #10  
Old 04-28-11, 09:37 PM
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No it's not the back. The picture was taken in mirror mode.
 
  #11  
Old 04-28-11, 10:38 PM
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Let's focus on the OP's question.

Originally Posted by CircuitBreaker View Post
I was thinking about getting a Multiple voltage Wall Power adapter and adjust the voltage until it lights up but I don't want to fry the LEDS and I assume there is a safer way to find out the proper voltage.
Yes, you can start with the lowest voltage on a Mult supply and work your way up without damaging anything. Make sure the polarity is correct.

Post the make & model. In the meantime, look anywhere on the unit for a label or an embossed panel that has text on it. That "small print" usually has power requirements.
 
  #12  
Old 12-15-14, 01:27 PM
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Radio shack has the supply cords

item #2730328 at Radio Shack. Current ones use a 12v 800ma adapter
 
  #13  
Old 12-15-14, 01:32 PM
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Thanks for additional reply, but this thread is old...

Closing it... Please start new...

Thanks...
 
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