WHY TINNED COPPER ?
Tinned copper wire is a type of copper wire coated in a thin layer of tin to protect the copper from corrosion that would decrease the wireâs efficiency in humid or rainy climates, high-heat environments and in certain types of soil. Tinned wire is more expensive than its non-tinned counterpart, but it lasts significantly longer and is easier to solder than non-tinned copper wire.