Sun Walker 2 PCS JD1912 Car Relay, 40A 12V 4-Pin Heavy Duty Automotive Starter Relay Plugs, SPST Waterproof Switches & Starters for Boat Tractor Truck Motorcycle, Car Accessories

Specification:Material: Nylon, Silver Alloy, CopperQuantity: 2 PCSStyle: 12 V/ 24 VColor: BlackWeight: 0.14 lbOverall Height: 1.59 inchesBody Height: 0.98 inchesHole Diameter: 0.24 inchesMax Switching Current: 40 AOperating Temperature: -40℉ to 185℉Feature: Flame-Retardant, Durable, WaterproofFit Type: Universal FitWhy are these car relays worth purchasing?-These relays have compact sizes, so they do not take up much space in your vehicle.-They are made of high-quality materials, so they can provide long-term service for you.-These car relays operate within -40℉ to 185℉ (-40℃ to 85℃), making them suitable for various environments.

• Practical Function: These automotive relays serve as electronic switches that use small currents to control larger circuits. These relays play a vital role in vehicle electrical systems by improving efficiency and making high-current switching smoother, so car components run more reliably
• Quality Material: These relays feature sturdy nylon housings that resist breakage and provide excellent insulation for safety. They also use pure copper coils for stable performance, while silver alloy contacts deliver dependable conductivity and lasting durability in automotive use
• SPST Design: These 4-pin relays adopt a simple SPST design with one movable and one fixed contact that allows only on and off states. These starter relays contain fewer components for higher reliability, helping electrical systems maintain steady switching control during extended use
• Wide Application: These waterproof JD1912 relays are rated for 12V DC or 24V DC with a maximum switching current of 40A for each. These relays are widely applied in power control for cars, trucks, and boats, but you should confirm whether the vehicles' devices require 12V or 24V before installation
• Easy to Use: These starter relays feature a socket-type design that makes installation straightforward, as you only need to insert them into the matching base. They also include a 0.23-inch (6 mm) mounting hole that provides a secure hold and helps keep the relay firmly fixed in place