Remote Battery Kill Switch: An emergency kill switch can avoid battery power consumption due to prolonged parking, power consumption of electronic devices, forgetting to turn off the light, aging circuits, etc., effectively protecting the battery and extending its service life. ️12V Battery Kill Switch: When the battery voltage is lower than 11.8V, the remote kill switch will automatically cut off the power after 120 seconds to save energy. If the voltage is higher than 13.5V (for example, during driving), the switch cannot be controlled by the remote control, but only via a manual switch. Easy to Install: The kill switch uses a negative connector to ensure stable performance. The power must be turned off before installation. The size of the switch is 3.3 x 2.4 x 1.4 inches, which takes up little space and allows for wider use. Wide Application: The emergency stop switch is suitable for most cars, boats, RVs, campers, caravans, trucks, off-road vehicles, UTVs, motorcycles, beach cars