Thanks to you all for your excellent suggestions.
The reverse voltage on these LED's is 5V. I take this to mean that
they "want" 5V supply voltage to them.
I have therefore decided (due to your help) to run eight parallel
arrangements of two LED's in series from the 12V supply. My LED's are
30mA and so I would need a 0.5A power supply. I am using a 30A supply
so this should not be a problem (even after distributing power to the
other components).
Since these LED's are 5V, I assume I need a resistor to drop the rest
of the 12V supply (i.e. 2V) so about 66 Ohm (or closest available). I
will connect these to each series array so I will need eight. I am
thinking of connecting the resistors to the negative side of LED.
Does this sound convincing or have I got it all in a mess????
Cheers for your help again.
Pedro de Oliveira
