resister/s needed to end up with the proper power levels.

01-09-2003, 04:15 AM

StirCrazy

Member

Join Date: Oct 2001

Location: Kamloops, BC

Posts: 7,872

this is what I am thinking....

I have a 18V supply and I have to drop it down to 4V so that means I have to drop 14 V with a resister.

so if I tak the Volts I have to drop and devide it by the curent of the LED I should get my resister rating.. so 14/0.02 = 700.. so I am thinking I need 700 Ohm resister.. so I will set up to the next highest to be safe..

Steve

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