Description: Relays and sockets are used for many car electronic applications to turn on/off almost any device. They are also 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. Features: Brand new premium heavy duty relays and sockets. Connectable interlocking sockets for a clean installation. The relays are high quality and they allow you to use many color wire you want. Awesome relay for those who want a weather proof seal. 12 volt relays with sockets and terminals,easy to install, works great. Specifications: Material: Plastic, metal Voltage: DC 12V Current: 40A Power: 1.6W Pin: 4 pin Waterproof: Support Single Size: 4.3 x 5.7 x 3cm / 1.69 x 2.24 x 1.18" Wire Length: 10.3cm / 4.05" Quantity: 2 relays per set Weight: 147g(approx.) Package Includes: 1 Set(2pcs) x Auto Relays 1 x Bracket Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.