The electric fan relay kit is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The craftsmanship can serve you well without breaking easily. This is a very practical electric fan relay kit. Features -Color:Assorted Color -Material:Brass, stainless steel, iron -Size: 5.60X1.60X1.60cm;/2.20X0.63X0.63in; Voltage: 12V Cable length: about 1m - The is set to turn your electric engine cooling fan on at 185 Fahrenheit degrees and off at 175 Fahrenheit degrees. - Install the thermostat into the head or intake manifold. Connect the black wire to the thermostat and cut to length. Press the red terminal over the black wire and connect to the thermostat. - Connect the red wire to the fan terminal or the power wire from the print to the motor of the electric fan. Install the circuit breaker in a convenient location, as close as possible to the power source used for the fan relay (battery or large terminal on the starter appliance). - Use the small yellow loop end to cut to length and install. Using the other small yellow ring terminal, you can take the rest of the red wire and connect the unused post on the circuit breaker to the . This wire is printed on the battery / . Connect the brown cable to the ignition or the fan , whichever is more convenient. - workmanship, reasonable structure, professional and practical, can bring you convenience. Package list: 1 x Circuit breaker 1 x relay pin 1 x relay wiring 1 x thermostat 4 x pre-insulated terminals 4 x screws 1 x 30A fuse 2 x blue fan tail connectors 1 x nylon terminal 1 x nylon female terminal