Features: Four independent relays can control four kinds of equipment, such as car light, wiper, horn and electric rear view mirror at the same time. The response speed of relays is extremely fast, and the circuit can be switched within 0.1 second. Frequent use of wipers in rainy days, or rapid switching of far and near lights at night, can respond instantly, without being stuck and uninterrupted, and the equipment runs more stably. ​ With overload protection function, the circuit is automatically disconnected when the equipment current is too large to prevent line from heating and catching fire. Like turning on high-power car heating equipment in winter, you don't have to worry about circuit overload. ​ The shell is crafted from fireproof and high temperature resistant plastic, which can withstand high temperature of 120℃ without deformation. The internal contacts are specially treated to prevent oxidation and corrosion, and they will not be in poor contact after being frequently switched for 100,000 times, and there will be no problems after being used for several years. Specifications: Rating voltages: 12V-24V Operating temperature range: -40~85°C Component:ABS Size:Approx.13x7x8cm/5.1x2.7x3.1inch Color:Black Type:4 Pin/5 Pin Package Includes: 1 Set Automotive Relays Fuses Box note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.