Originally Posted by RJR:
feet, GGG and Matt are giving sound advice. GGG, as a most-knowledgeable person on the technicalities of boards, can you verify Matt's "belief" on the voltages supplied by boards? Did 5-volt, 3-volt PS2, and PS3 boards all supply the same voltage?
I assume 6V and use the 300 ohm. In reality it is a high (near 22VDC) peaks that are sent to be effectively about 6V via PWM. I drive the strip LEDs off the output with no resistors and they require 12VDC. G