First, lets assume that I know nothing. Thats the easy part. I’ve got some run of the mill Christmas LEDs to light up some buildings. I’ve got a 12 volt 800 milliamp wall wart to power everything. From what I understand each LED is approx. 20 milliamps and 3.2 volts. Sound good so far? OK. Here comes the questions. If I wire several LEDs in SERIES what does that do to the amount of milliamps that I draw? i.e.: if I place two in SERIES do I draw twice as many milliamps- 40 milliamps, 3 in SERIES 60 milliamps, etc. or is there some electrical law that I’m missing. All information is greatly appreciated. Oh, and yes, I will place a resistor between the power supply and the LEDs. Thanks for your help.
-Kevin.