Led help please

[Jakyat]

Alright, im aware there are lots of good threads for leds. I've read through plenty of them but still don't have the answer I'm looking for. For my build , i will have about 30 different led lights running them all with 4 different circuits;
1) 10, rear facing (4, 8mm & 6, 5mm3volt) all on one circuit.
2)cab clearance + another 6 clearance (3 on ea side) so 11, 3mm 3 volt on this circuit.
3) 4, 5mm leds- headlights
4) 4, 8mm leds- work lights
My thoughts; i want to use 4 different channels on my X- plus module and supply it with its own power source, rather than the main reciever. I have purchased some reciever activation switches specifically for the purpose. My thoughts were , by doing it this way, would save me from figuring out all the resistor values...... my question is, how many volts should I supply the x-plus module with?