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4Crawler · 04-25-2008, 05:01 PM

For a resistor to drop the voltage, you need current flowing, i.e. V=I*R. What is your circuit? Also, a simple series resistor circuit will only work for a constant current type of load (like your LED). If you have a device that needs varying amount of current then the series resistor will provide varying levels of voltage drop.

04-25-2008, 05:01 PM	#2 (permalink)
4Crawler Contributing Member Join Date: Jun 2002 Location: SF Bay Area, CA Posts: 7,836	For a resistor to drop the voltage, you need current flowing, i.e. V=IR. What is your circuit? Also, a simple series resistor circuit will only work for a constant current type of load (like your LED). If you have a device that needs varying amount of current then the series resistor will provide varying levels of voltage drop. __________________ 1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs or 35x12.50 MTRs r.c.brown@ieee.org TruckEditor@tlca.org Project: 4Crawler 4Crawler OffRoad Gettin'Off 4WD Club Last edited by 4Crawler; 04-25-2008 at 10:02 PM.*