Subject	LED's are not direct replacement for standard bulbs unless
Posted by	Zirvana on March 19, 2008 at 10:22 AM
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In Reply To	LED info for dash and etc posted by Carlos Ramirez on March 19, 2008 at 09:17 AM
Message	they have a current limiting resistor built into them (which most do not have). An LED will draw all the current it can until it melts/blows...so a resistor is used in series with the LED to limit the current to around 20 - 30 milliamps. It does not really matter if you place the resistor on the + (anode) or - (cathode) side of the LED. Typically a resistor around 330 ohms to 1K ohms will work for most 12 VDC LED applications...determine the resistor value based on how bright you want the LED to shine (lower resistance the brighter the LED).
Follow Ups	LED info for dash and etc - Carlos Ramirez 09:17:05 03/19/08 maybe he can help you - Alan(NJ) 09:18:33 03/19/08 Re: maybe he can help you - Carlos Ramirez 09:31:59 03/19/08 Bulb Guide - BigTDogg (MA) 09:51:30 03/19/08 in case Tony's link doesn't work (it didn't work for me) - Cap927(Boston) 10:30:24 03/19/08 LED's are not direct replacement for standard bulbs unless - Zirvana 10:22:23 03/19/08 Incorrect Incorrect Incorrect - pcproa 11:07:36 03/19/08 It was not my intention to provide a full tutorial on how - Zirvana 11:16:02 03/19/08 conversion projects are useless nowadays - ZEngineer 11:21:00 03/19/08 2nd...drop in replacement LED's are available form many - Zirvana 11:22:04 03/19/08 I am making a timer circuit for my current - pcproa 11:25:04 03/19/08 I think Carlos is looking for LED bulbs with resistors ... - Cap927(Boston) 11:18:52 03/19/08 The LED's from superbrightleds.com have built in resistors (n/m) - SC300Z 16:16:30 03/19/08
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