Relays can be used to switch a low current trigger to high current switch a circuit on or off reverse polarity and much more. A standard flasher relay works on load this means it is designed to see 21 watts bulbs when you fit led lamps or bulbs the relay can not detect the load as the led lampled bulb may only use 2 to 3 watts resulting in fast flashing which is no good to anyone.

Relay Case How To Use Relays And Why You Need Them
Do i need a relay for led lights. How to wire your led light bar using a relay. Power load and ground for the light. 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. When the current increases this switch needs to be big. Great construction40a power relay and inline blade fuse for multiple safety protection. With 1 light output connections with 1 led work light or 1 small watt led light bar and any else off road leds.
When you are not using a relay the control switch needs to be able to handle the full current of the installed lights. Youll want the relay to power the led in that switch when the led pods are on. A relay is an electrical switch that lets a low current circuit control a high current circuit such as a large led light bar. 10ft extendable wiring. 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. Recently finished adding led fog lights to my zr2.
Since the zr2 has no bcm programming. I think you will only need a relay basically when the onoff switch your useing and wireing to it wont handle the load pasing through it. Another reason you may want a relay is for the creative ways you can use electrical currents from things other than a physical switch. Would i need to run a relay with these particular lights. It is a universal fit for any work light bars that are within or below 288w. The lights i believe are a combined 60w and each one draws 13 amps.
Show full signature. Details make perfectadopt 16 gauge flexible strand copper wire up to 288 watt load capacity. Or could i get by. I replaced the head lamp switch with an oem fog light switch. Mictuning mic 1to1 wiring harness kit with onoff switch and easy to install. Read more about that below.
No that switch is self powered. When adding led lights such as off road light bars drivingwork lights or other auxiliary lights to a vehicle you must add a circuit to power the light adequately. Lets say you want have your led light bar come on with your high beams or reverse lights for example.