Specification: Colour: Black Voltage: 12V Current: 40A Contact Type: SPST Material: Metal, Plastic Pin Number: 4 Pin Note:The Contacts on this relay is normally open (NO) Features: - SPST contact type- Durable- 12V DC rated voltage - It is used when a device draws heavy amperage such as car alarms, remote starts, HID headlights, pop doors, trunk releases strobe lights, fog lights, stereos, fans, air horns, and much more. Note:1. Please check the size measurement chart carefully before making payment.2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)3. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.4. Instruction is not included. Package included:1 x Car Relay with Socket Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you .Thank you for choosing our product. We hope you enjoy it