Copper Bright Wire
Also known as Bare Bright Copper, Copper Bright is Copper #1 wire that is thicker than 1/16 of an inch and is stripped of all insulation. Wire is clean, no corrosion, no insulation. This is the highest price copper wire since processing is minimal for recycling.
Copper Wire #1 High
This is the highest grade of copper wire that still has insulation on it. Copper content is 55% or higher by weight. In addition, copper does NOT have any aluminum or steel coating. The inside copper strands need to be more than 1/16th of an inch thick or at least as thick as a standard pencil lead.
Copper #1 Wire Medium Insulated
The inside copper strands need to be more than 1/16th of an inch thick or at least as thick as a standard pencil lead. Copper content is 40-50% by weight.
Copper #1 Wire Low Copper Content
Lowest grade and has the least amount of copper (about 25%). Includes computer cables and other heavily insulated wires.
Copper Wire Romex
Romex® is known as a generic term for insulated household copper wiring but, in fact, Romex® is brand or trademark owned by the Southwire Company. It is a type of an electrical wire commonly used in homes and buildings. A Romex® cable is covered by an outer insulation and contains two or three individually insulated copper wires inside.
Used and broken christmas lights can be recycled for its copper and glass components.