On 12/4/11 4:19 pm, Carla Schroder wrote: > OK electronics gurus-- how do I know which resistors go with LEDs? Other than > asking the vendor. Like this one > http://search.digikey.com/us/en/products/WP7113SRD%2FE/754-1276-ND/1747675 > > thanks, > Carla > Would this help? http://led.linear1.org/1led.wiz