"John Proctor" wrote in message
news:2005101923295216807%lost@nowhereorg...
Don't forget that the LED is a current device. By that I mean light
output is a function of forward current. Hence to get even illumination
from multiple LEDs it is imperative that each LED be driven via a
current regulated source. It is not sufficient to parallel them up in
series with a dropping resistor.

Indeed. It's better to connect them in series (3 x 3V) and regulate the
current though that. Needs only one regulator.

Meindert