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Modifying 12V LED Strip Lighting to work in 24/28V Aircraft

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Eric M. Jones

Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts

Posted: Sat Jul 28, 2012 9:31 am Post subject: Modifying 12V LED Strip Lighting to work in 24/28V Aircraft

LED Strip lighting is usually made for 12V systems. To convert this for 24/28 volt systems see the attached pdf.



This is far better than using a stepdown supply or adding a load resistor.

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Modify LED Strip lighting for 24-28 Volts.pdf

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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net

etienne.phillips(at)gmail
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Posted: Sat Jul 28, 2012 10:38 pm Post subject: Modifying 12V LED Strip Lighting to work in 24/28V Aircraft

Strangely enough, I did exactly this at work on Thursday. One thing to remember is that the number of LED's in each of the strips must be the same or the one with less LEDs in it will be brighter, or even blow. 



Etienne



On 28 Jul 2012, at 7:31 PM, Eric M. Jones wrote:



 	  Quote: 	
		   

 

 LED Strip lighting is usually made for 12V systems. To convert this for 24/28 volt systems see the attached pdf.

 

 This is far better than using a stepdown supply or adding a load resistor.

 

 --------

 Eric M. Jones

 www.PerihelionDesign.com

 113 Brentwood Drive

 Southbridge, MA 01550

 (508) 764-2072

 emjones(at)charter.net

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=379414#379414

 

 

 

 

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dfritzj(at)yahoo.com
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Posted: Sat Jul 28, 2012 11:55 pm Post subject: Modifying 12V LED Strip Lighting to work in 24/28V Aircraft

This raises a good question: is it okay to light a strip of LEDs by just wiring them in series in a quantity such that each LED sees the appropriate voltage  drop?  This would seem to eliminate the (admittedly small) energy loss from heating up resistors. On the other hand, failure of one LED would darken the whole string. 



Thoughts?



Dan

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