J_Bird Posted September 26, 2010 Report Share Posted September 26, 2010 What resistor should I use for a 3.2V LED??? Quote 2005 GMC Sierra Ext Cab Optima RedTop Battery Alpine CDE-9874 Head Unit 2 Rockford Fosgate T1 12's 1 Rockford Fosgate T500-1bd Amp 4 Rockford Fosgate Power Series Coaxials (Factory Sizes) Link to comment Share on other sites More sharing options...
J_Bird Posted September 26, 2010 Author Report Share Posted September 26, 2010 And is this a good idea? I ran the power wire for the LEDs off of my remote wire from my head unit. And the ground is coming straight from my battery. Is this good or should I run the power wire from the battery also? Or at least my fuse block for my amp? Quote 2005 GMC Sierra Ext Cab Optima RedTop Battery Alpine CDE-9874 Head Unit 2 Rockford Fosgate T1 12's 1 Rockford Fosgate T500-1bd Amp 4 Rockford Fosgate Power Series Coaxials (Factory Sizes) Link to comment Share on other sites More sharing options...
Ji553r Posted September 27, 2010 Report Share Posted September 27, 2010 im pretty sure its car voltage eg 14.6 - led voltage 3.2 then divide by amperage so divide by .2 or whatever. and well if you hook it up to remote it will be on every second your head unit is. run it straight from battery with a small fuse hooked up to a switch is how id do it Quote I don't fuck around. I go from zero to I hope you die in less than 2 posts build log http://www.stevemeadedesigns.com/board/topic/104524-new-subs-coming-sundown-3500d-arc-audio-cable-lacing-crescendo/ Link to comment Share on other sites More sharing options...
CheezyMane13 Posted September 27, 2010 Report Share Posted September 27, 2010 Try a 330ohm resistor, you can get them from Radio Shack for $1 for 5 Quote take baby steps, u cant do it all at once unless u have a roll of 100's big enough to choke a donkey 1998 Chevy Venture "Swagger Wagon" Kenwood Excelon KDC-X994 Headunit 3 15" Alpine Type R's in seperate T-Lines 1 RF T1500-1bd for 2 of the 15s 1 RF P1000-1bd for the single 15 3 sets of Hifonics Zeus ZXi6.5C Components( 1 more set to come for Front stage) 1 Hifonics HFi100.4 4-channel amp Stock alt for now (DC HO SPL 400A when funds come in,currently working on buying this) Stock battery and one Optima Redtop for now (looking at XS batteries) 3 15" Alpine Type R's (aka Swagger Wagon Build 1.0) Swagger Wagon Build 2.0 Youtube Videos Link to comment Share on other sites More sharing options...
J_Bird Posted September 27, 2010 Author Report Share Posted September 27, 2010 So I should run it straight from the battery and through a small fuse? What about resistors? I bought the 470 ohm resistors and the LEDs won't even light up. I'm guessing its because the resistor is too big. Someone told me I should try a 140 ohm would that be too small? Quote 2005 GMC Sierra Ext Cab Optima RedTop Battery Alpine CDE-9874 Head Unit 2 Rockford Fosgate T1 12's 1 Rockford Fosgate T500-1bd Amp 4 Rockford Fosgate Power Series Coaxials (Factory Sizes) Link to comment Share on other sites More sharing options...
white4d96 Posted September 27, 2010 Report Share Posted September 27, 2010 http://led.linear1.org/1led.wiz http://led.linear1.org/led.wiz /thread. I use them all the time for little projects. Quote Too many projects, too little time... Link to comment Share on other sites More sharing options...
J_Bird Posted September 27, 2010 Author Report Share Posted September 27, 2010 Try a 330ohm resistor, you can get them from Radio Shack for $1 for 5 So do you think the 470's were too big cuz the lights wouldn't even come on. I'm also using the rectangular LEDs because Radio Shack was out of the round ones which I'm used to. Quote 2005 GMC Sierra Ext Cab Optima RedTop Battery Alpine CDE-9874 Head Unit 2 Rockford Fosgate T1 12's 1 Rockford Fosgate T500-1bd Amp 4 Rockford Fosgate Power Series Coaxials (Factory Sizes) Link to comment Share on other sites More sharing options...
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