1. Magnetic Lock Function: The arc extinguishing switch of this car adopts a type of relay, which uses magnetic principles to control the connection and disconnection of the circuit. The standby current is 0.015A, which is more energy-efficient. 2. Suitable for 12V DC power vehicles. Compatible with for Ford for Chevrolet for GMC for Dodge and most sedans, trucks, RVs, trucks, trailers, etc. (Vehicles with a displacement less than 3.0) 3. Automatic Disconnection: If the battery voltage is below 11.8V, the remote disconnect switch will automatically disconnect the power in 120 seconds to save energy. If the voltage is higher than 13.2V, remote control will be invalid to prevent accidental disconnection of power while driving, and the power can only be controlled through the manual switch. 4. Battery Protection: By using this battery switch, you can avoid unwanted battery power consumption caused by prolonged parking, good electronic devices, aging wiring, and forgetting to turn off lights. It can effectively protect and extend the lifespan of car batteries. Attention: When installing this product, please check the engine is turned off. The check switch is also a manual power-off switch. Note: Due to different production batches, there may be slight differences in the product, which does not affect use. Type:SW3503 For cars under 1.5 displacement Working Voltage:DC12V Through Current:220A Standby Current:0.01A Instantaneous Current:600A Colour:Black Material:plastic+Metal Package Contents: 2 Set x Remote Battery Disconnect Switch