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Genaro
Active Contributor
Mexico - Member - New Member

Join Date: Jan 2007
Location: Morelia, Mich. Mexico.
Posts: 11

LED Lamp for 12 DCV

04/06/2007 1:44 PM

I am trying to manufacture a led lamp for 12 DC volts, of different number of leds. So far I have done 12, 24 and 39 leds. The leds I have bougth for this lamps, apparently are not the best, I understand there are "super bright" leds, but I haven't found them in my hometown (Morelia, Mich. Mexico), any suggestions, and, actually are they so much different in brigthness?

Thanks for any comments you might have.

Congratulations to all of you people, who started and keep on "feeding" the site with your participation, happy anniversary for this CR4.

Gracias

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BrainWave
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Popular Science - Weaponology - New Member

Join Date: Feb 2006
Posts: 962
#1

Re: Led lamp for 12 DCV

04/06/2007 2:11 PM

What color of LED are you using it makes a big difference, what application you say LED lamp are these white LED's or colored? Red types are cheep and offer good value. Yes the ultra bright types do make big difference in the light out put. What is your power source? Battery/mains? The more you can provide in the way of detail the more help you will get. I am UK based but I am sure some body in the USA will come up with the goods.

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Genaro
Active Contributor
Mexico - Member - New Member

Join Date: Jan 2007
Location: Morelia, Mich. Mexico.
Posts: 11
#8
In reply to #1

Re: Led lamp for 12 DCV

04/07/2007 4:09 PM

I am using white leds. The lamps are a part of a lightning system for rural application. Small villages that have no chance at all, of conventional electric service.

The complete system is a 20 watt Photovoltaic module, a 24 amp-hr rechargable battery, a 5 amp controller, and the led lamps.

Thanks for your answer.

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Anonymous Poster
#10
In reply to #8

Re: Led lamp for 12 DCV

04/07/2007 8:29 PM

Hello Genaro,

There is a wealth of information and research around what you appear to be trying to achieve. Have a search for Bushlight (unincorporated Joint Venture with CAT (Centre for Appropriate Technology). ACRE (Australian Centre for Renewable Energy), and/or visit www.icat.org.au (Centre for Appropriate Technology then link through to Bushlight), www.gvep.org (Global Village Energy Partnership) etc etc. The Cooperative Research Centre for Desert Knowledge is an umbrella Public-Private Partnership-styled organisation in Central Australia which promotes collaboration in many relevant areas of the exploration of knowledge and experience.

There is often no need to reinvent the wheel!! Collaborate in enhancing what exists !!
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bhankiii
Guru
Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: El Lago, Texas, USA
Posts: 2639
Good Answers: 65
#2

Re: LED Lamp for 12 DCV

04/06/2007 2:19 PM

You might enjoy these sites:

http://www.cml-it.com/

http://www.superbrightleds.com/

http://www.luxeonstar.com/

http://www.osram.com/

http://www.alliedelec.com
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BrainWave
Guru
Popular Science - Weaponology - New Member

Join Date: Feb 2006
Posts: 962
#3
In reply to #2

Re: LED Lamp for 12 DCV

04/06/2007 2:21 PM

Yep looks good to me.

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 There's them that knows and them that just thinks they know, whitch are you? Stir the pot and see what rises up. I have catalytic properties I get a reaction going.
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Genaro
Active Contributor
Mexico - Member - New Member

Join Date: Jan 2007
Location: Morelia, Mich. Mexico.
Posts: 11
#9
In reply to #2

Re: LED Lamp for 12 DCV

04/07/2007 4:14 PM

Thank you. I will go to everyone of the sites that you are recommending me.

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aurizon
Guru
Hobbies - HAM Radio - New Member United Kingdom - Big Ben - New Member Fans of Old Computers - Altair 8800 - New Member Canada - Member - New Member

Join Date: Jun 2006
Location: Toronto
Posts: 3968
Good Answers: 120
#4

Re: LED Lamp for 12 DCV

04/06/2007 10:56 PM

www.ledsmagazine.com read the ads.

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rcapper
Guru

Join Date: Dec 2005
Location: Etats Unis
Posts: 1871
Good Answers: 45
#5

Re: LED Lamp for 12 DCV

04/07/2007 1:32 AM

Try www.digikey.com. I imagine the would ship to Mexico and they have a really good search engine so you can sort out the characteristics you want. Most of the parts have direct links to data sheets. The nice thing is that most of what is listed is in stock and it's easy to get.

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nick name
Guru

Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#6

Re: LED Lamp for 12 DCV

04/07/2007 7:32 AM

Yes the difference is amazingly strong. There are also quite big LED especially for such applications.
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BrainWave
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Popular Science - Weaponology - New Member

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Posts: 962
#7

Re: LED Lamp for 12 DCV

04/07/2007 10:01 AM

Try www.farnel.co.uk They have disribution all over the world Newark in the USA.

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 There's them that knows and them that just thinks they know, whitch are you? Stir the pot and see what rises up. I have catalytic properties I get a reaction going.
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Anonymous Poster (1); aurizon (1); bhankiii (1); BrainWave (3); Genaro (2); nick name (1); rcapper (1)

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