Posted: Sat Apr 22, 2006 9:28 am
maybe yoiu can help me... i want to do a LED dome light for my car. im probably going to go out and buy the LEDs and stuff today.e do i need to buy one of those boards like you used with the tail lights?
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the resistor controls current.joeyc wrote:is it necessary to have a resistor when using 2 aaa to supply like 5 or so? forward voltage is 2.4. it says to use a 33 ohm, but is it really necessary?
Ya, that will be the easiest way to do it. Just cut it to the size you need, and then solder in all your resistors. Just make sure you get the polarity of the LEDs right, other wise it won't light up :)Darthness wrote:maybe yoiu can help me... i want to do a LED dome light for my car. im probably going to go out and buy the LEDs and stuff today.e do i need to buy one of those boards like you used with the tail lights?
Yes as Kiki said it controls the current, otherwise you could blow out your LEDs really quick.joeyc wrote:is it necessary to have a resistor when using 2 aaa to supply like 5 or so? forward voltage is 2.4. it says to use a 33 ohm, but is it really necessary?
yeah, just bought some from there, BUT they don't have as wide of variety as some others. But they are definitely competitively priced!! do the uv's work pretty good? OH and how well does filing or cutting the top of the led effect the dispersion of light?Justin from Detroit wrote:I get all mine from Oznium.com. Great service and great product.
I've never done either before, but I would think it would affect the viewing angle some.joeyc wrote:yeah, just bought some from there, BUT they don't have as wide of variety as some others. But they are definitely competitively priced!! do the uv's work pretty good? OH and how well does filing or cutting the top of the led effect the dispersion of light?