What resistors do I need?

If you can make it either or , you can make a series/parallel circuit and use no resistors at all. in series @ volts each is volts

Eleven groups is , twelve is

—-OR—-

You have times ma is ma

E over I equals R

You need to kill volts with ma

/ . = . So ohms

x.=. so six watts

A twelve ohm six watt resistor if you connect all led’s in Parallel and then in series with the resistor

—-OR—-

If the Led’s are not all going to be lit at once, and you want to wire them separately, then it is still E over I equals R

You Still need to kill volts, but with only ma SO . / = so ohms

x. = . so / watt

So resistors (one for each led) of ohm, quarter watt. quarter watt carbon resistors will be A lot easier to find, and probably cheaper than one big fat wire wound six watt ohm

Even though it is more parts, the reliability goes up because in the parelell circuit, if on led burns out or gets damaged, it will raise the voltage on the rest, because the current drawn will go down.

Wireing themm separately, they will all be independent of each other.and can be switched on and off independently

If your question were more specific, my answer would not have to cover so many bases.

Good luck!.