Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for 12v 40a Auto Relay, High Voltage Relay , 12v Relay 4 Pin , General Purpose Relay ,American 8mm Feet . We welcome you to inquire us by call or mail and hope to build a successful and cooperative relationship. The product will supply to all over the world, such as Europe, America, Australia,Libya , Washington ,Poland , London .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.