The first number of wire control is the wire rod, such as: CR301, the number 3 means wire rod.
Power Cable skin color, there are two kinds color white and black, we usually use white.
Cable length usually 1.5 meters, 0.5 meters. If customer no special requirements, we use 0.5 meter length.
We also can OEM Power cable for customized, it can choose the thick cable, or the cable with American Standard plug, and so on.