Good Sky 30A Automotive Relays – Good Sky CAR-SH-124DE, These 24V coil relays from Good Sky have been especially designed for automotive use. Their heavy duty construction enables them to switch the heavier loads required in vehicular applications making them ideal for use in the control of car alarms, central locking, indicators and lighting. Good Sky CAR-SH-124DE 24V 30A Automotive Relay