TanoSkywalker

My rig in action after I put them in:

Not exactly. Each wire has 6x 330 Ohm resistors in parallel which is equivalent to 55 Ohm if you want to add a resistor in series before all of them. According to my calculation, you just need a 77 Ohm resistor on 12 V wire. After testing, I personally did put an 100 Ohm resistor on the 12 V wire just so the the voltage after the resistor is about 4.8 V (measured using multi-meter). I find 100 Ohm is a safe value if you want to put just one fitting on the line. If you are to add more (using the Y connector with it) that value can be decreased even more ( it technically parallel wiring). But I would recommend just to 100 Ohm to get good balance and brightness. Anything more than 100 Ohm with look dim if you add more fitting on one chain.