ITEM NAME:40A DC 12V 4 Pins SPST Truck Car Alarm Audio Relay JD1912 B5W9 40A DC 12V 4 Pins SPST Truck Car Alarm Audio Relay JD1912 B5W9 DC 12V 40A 4 pins relay. SPST type. Metal mounting tab handle that can be removed Used when a device draws heavy amperage such as car alarms, remote starts, HID headlights, pop doors, trunk releases strobe lights, fog lights, stereos, fans, air horns, etc.
