im looking to do the 4x24watt pc upgrade through nanocustoms. my question is that will i have to use my orig. ballast in my transformer box or will they supply new ones? the reason being is i dont think my current ballast is outputting to the 2nd bulb because when i switch the plug for each cord the other light comes on and not both at the same time. so i can resolve this if they send all replacement ballasts in this system or do i have to use the one that is hooked up now as well as an additional.