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LED light bar project

 
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Bonstrosity
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Joined: 21 Mar 2008
Posts: 2

PostPosted: Fri Mar 21, 2008 6:06 pm    Post subject: LED light bar project Reply with quote

I recently happened upon this site and it really peaked my interest in starting a project I have thought about for a while. I want to make an LED light bar to go in the back of a vehicle similar to what emergency vehicles have. I recently purchased a bunch of 13,000 mcd blue 5mm LED's off of ebay along with some PC board which I'll cut down to a certain size and mount on a strip. To control it all I bought an eight light led flasher. My questions about the project are

1. Are 13,000 mcd led's going to be bright enough, or are there other LED's I should get for the project
2. is there any advice on soldering these LED's to the PCB?

I plan on making a couple of these Amber being the next go around. This is in the U.S. so it's a 12 volt negative ground system. Here is a link to what I would like to shoot for.

http://www.youtube.com/watch?v=LTFzD9Q_HIA&mode=related&search=

Also would any of you have any idea on how to make the whole unit waterproof so it could be mounted externally on a vehicle?
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Sun Mar 23, 2008 11:09 am    Post subject: Reply with quote

Those should be bright enough. This calculator should help you calculate the required resistor values based on the voltage of the LEDs you purchased.
http://alan-parekh.com/led_resistor_calculator.html

This looks to be the controller that was used, it should work fine for your application.
http://www.swps.com/11flmoformil.html

Let us know how it turns out.
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Bonstrosity
Newbie


Joined: 21 Mar 2008
Posts: 2

PostPosted: Sun Mar 23, 2008 8:21 pm    Post subject: Reply with quote

Thanks for the links I am actually going to use a flasher more like this http://www.swps.com/11-1025-008.html

so close but w/ 8 outputs so I can use different patterns. I actually have that one and have messed with it and they work great. I'll post a video and some pictures when I'm done with it.
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Alan
Site Admin


Joined: 29 Jan 2006
Posts: 1399
Location: Winnipeg, MB

PostPosted: Mon Mar 24, 2008 10:01 pm    Post subject: Reply with quote

I forgot to mention that silicone can be used to make the circuit waterproof.
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luxlighting
Semi Newbie


Joined: 27 Apr 2008
Posts: 6
Location: Shenzhen,china

PostPosted: Sun Apr 27, 2008 5:46 am    Post subject: re:Lux led lamp Reply with quote

Try : www.luxledlight.com And find suitable bulbs .
_________________
Danny Duan from shenzhen lux lighting tech co.,ltd .
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