Specification:<br> Colour: Black<br> Voltage: 12V<br> Current: 40A<br> Contact Type: SPST<br> Material: Metal, Plastic<br> Pin Number: 4 Pin<br> Note:The Contacts on this relay is normally open (NO)<br> Features:<br> - SPST contact type<br> - Durable<br> - 12V DC rated voltage<br> - 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.<br> Note:<br> 1. Please check the size measurement chart carefully before making payment.<br> 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)<br> 3. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.<br> 4. Instruction is not included.<br> Package included:<br> 1 x Car Relay with Socket