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rutcgr18 
Member - Posts: 45
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Joined: May 26, 2005
Location: United States
Posted: April 19, 2006 at 9:02 AM / IP Logged  

Those are nice but they are a bit pricy i can get 100 of the blue that i am using for 25 bucks

mike

nhoj_yelbom 
Member - Posts: 46
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Joined: April 15, 2006
Posted: April 19, 2006 at 9:02 AM / IP Logged  
go to page 2
nhoj_yelbom 
Member - Posts: 46
Member spacespace
Joined: April 15, 2006
Posted: April 19, 2006 at 9:04 AM / IP Logged  
the luxeon 3 emitters are only $2 to $5 apiece at more light output 
firstrax 
Copper - Posts: 113
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Joined: January 18, 2006
Posted: April 19, 2006 at 10:20 AM / IP Logged  

nhoj_yelbom wrote:
about those luxeons, you dont have to have a constant current regulator do you?

Mandatory, no. Wise yes.

At that level of power very small changes in voltage will make a large change in brightness. Also the forward voltage of the leds can differ 25%  or more from one led to the next. Add that to the fact that your cars voltage is going to vary you run the risk of damaging an expensive led. The constant current regulator will maintain a constant brightness up to 30 volts regardless of the leds actual forward voltage.

I'll post the how to on constant current regulators tonight.

rutcgr18 
Member - Posts: 45
Member spacespace
Joined: May 26, 2005
Location: United States
Posted: April 19, 2006 at 11:34 AM / IP Logged  

ok sounds good were can you buy these a guy on ebay whats 6.50 a piese for these i know i can do better i want like 6 of them and how do i amke the the regulater or can i jsut buy it

thanks

mike

ff-mike 
Copper - Posts: 199
Copper spacespace
Joined: November 15, 2004
Location: United States
Posted: April 19, 2006 at 12:07 PM / IP Logged  
The LEDs you are using are approximately 1/10th the output of Luxeons.
You can buy or make the regulator. A cheap DIY regulator can be made by using a voltage regulator to knock the Jeeps voltage down to 6V, and then using the 11 ohm resistor to give the 350mA constant current.
If you are going to be building a flasher for these also, you can take the current up to the 500mA max by using an 8 ohm resistor.
firstrax 
Copper - Posts: 113
Copper spacespace
Joined: January 18, 2006
Posted: April 19, 2006 at 1:00 PM / IP Logged  

I just uploaded some prints for a constant current regulator.

https://www.the12volt.com/downloads/downloads.asp?catid=36

nhoj_yelbom 
Member - Posts: 46
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Joined: April 15, 2006
Posted: April 19, 2006 at 1:09 PM / IP Logged  
nhoj_yelbom 
Member - Posts: 46
Member spacespace
Joined: April 15, 2006
Posted: April 19, 2006 at 1:25 PM / IP Logged  
they sell inline current regulators on one of those sites also, if anyone puts these in something pm me because id like to look at it
rutcgr18 
Member - Posts: 45
Member spacespace
Joined: May 26, 2005
Location: United States
Posted: April 19, 2006 at 5:38 PM / IP Logged  
The min is 240 pieces i want like 6 or 10
Let me know
thanks
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