For lower powered lights it is possible to do so but it is generally good practice to install a switch with an in line fuse. For anything above 30w we recommend installing a relay.
Fog Lights Off With High Beams On Relay Wiring Diagram
Why do i need a relay for fog lights. An electro magnet also called a coil is used to pull a set of contacts or pins together. A relay is an electrical switch that lets a low current circuit control a high current circuit such as a large led light bar. How this system works. Connect the wire for lights bar from the relay. An electrical system is only as reliable as its components. Basically what happens is that small wiring and a small switch in the dash or wherever are used to turn onoff a bigger switch the relay that can handle lots of amps and has big wires running to and from it.
If you are using a light pod that does not have a very large amp draw you may not need a relay switch but if you are using a larger led light bar they are a must have. Three wires are required on the switch because its a double switch. One easy way to increase system reliability and performance is by using relays to switch devices lights fuel pumps fans etc on and off. When a driver wishes to use their fog or driving lights they engage a switch in the cabin which indicates to a relay that the lights should be turned on. When the current increases this switch needs to be big. 12v led fog light laser rocker onoff switch wiring harness 40a relay fuse red.
A relay is just an electrically operated switch. A relay is an electro mechanical switch. They are meant to help the driver see the edges of the road when visibility is low. The fog lights are lights underneath the headlights that are designed to improve visibility in dense fog or rain conditions. Redblack correspond to the wire of lights bar. When you turn on the fog lamps the switch also powers the taillights wouldnt do to be rear ended in fog because you forgot to turn them on and the taillights backfeed the instrument lights so you can see them too.
When the fog and driving lights fail drivers may struggle to readjust to the standard high beamlow beam headlights. The fog light relay is the electrical relay that is responsible for controlling power to the fog lights. Full wiring kit for all light bars with laser rocker switch on off switch. Ford used an automatic circuit breaker.
Gallery of Why Do I Need A Relay For Fog Lights
