Solar Cables by Greener World Store are assembled in the U.S. by trained technicians. There is a difference between the low end imports from areas without U.S. standards. The cable is U.L. registered and U.S. made. The connectors are T.U.V. rated, the industry standard. These cables will give you decades of service with no worry. Greener World Store does not sell golf clubs, plastic toys, or other non-related items as some others do. Buy your cables and connectors from Green Energy professionals.