As an electrical control device, the relay is in fact an "automatic switch" that controls the operation of a large current through a small current, so that it has functions of automatic regulation, safety protection as well as circuit conversion. Many automobile and motor devices need a relay to control the circuit, such as led work light, fog lamps, starter, wiper, fans, speakers, central locking, alarm, electric windows, etc.
MICTUNING 12V 40A relay is a great replacement for light bar and suitable for most LED light bar wiring harness kit.
Package included: 1x relay.
As an electrical control device, the relay is in fact an "automatic switch" that controls the operation of a large current through a small current, so that it has functions of automatic regulation, safety protection as well ...
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